Feature

Technologies
Offering Value
New Fields
Technical Developments
in in
2017

1944
1945
(Former
Ueda
Midorigaoka
Works)
Head Kita
OfficeWorks
and Tokyo
Worksrelocated

44
45

NovemberMay 2018
2017

COLUMN
Cover image:

Head Office and Tokyo Works relocated1945

Fifteen long years of war came to an end in August of 1945.
Domestic production capacity had declined rapidly due to a lack of raw materials andlabor, in addition to damaged and evacuated factories following the late-war air raids.
However, the wartime economy had expanded the scale of the electric industry, and theradio communications sector in particular had achieved dramatic growth of bothmanagement scale and the level of technology.
During the war, we had established ourselves as a top domestic manufacturer of radio
power generators.
In addition to specialized radio power generators, we had worked on many products in
new advanced technology fields, and in so doing had built up our proficiency in a numberof technologies.
In December of 1945, we established a new head office and factory in Tokyo's Sugamo
district (now called Kita-Otsuka).
The structure had been damaged in air raids, leaving only the reinforced-concrete walls
and floor. We repaired it and completed the factory.
While food shortages and a lack of supplies continued nationwide, causing many
companies to suffer, we had taken our first step toward recovery.
We overcame the turbulent post-war period, and by 1951 the facility was runningsmoothly, with production lines in the basement and on the first floor, inspection andassembly lines on the second floor, storage and winding lines on the third floor, and aheadquarters office on the fourth floor.

45
May 2018

SANYO DENKI TECHNICAL REPORT
C

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E

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SANYO DENKI Continues Moving Forward with People

Operating Officer Satoru Onodera

Features: Technical Developments in 20171

3

■ Cooling Systems Division

Highlights of 2017 and New Products Introduction

Honami Osawa ........................... 3

High Airflow Splash Proof Centrifugal Fans
San Ace 225W and San Ace 221W Kakuhiko Hata and Others .................................................. 6
High Static Pressure Counter Rotating Fan
San Ace 40 9CRH Type Shuji Miyazawa and Others ....................................................................... 11■ Power Systems Division

Highlights of 2017 and New Products Introduction

Naohiko Shiokawa ..................... 16

Development of the SANUPS W73A
Power Conditioner for Wind Power and Hydro Power
Generation Systems Masahiro Inukai and Others ........................................................................... 20
Development of the SANUPS N11B-Li (3 kVA)
Uninterruptible Power Supply Takeo Murai and Others ............................................................ 24■ Servo Systems Division

Highlights of 2017 and New Products Introduction

Yasutaka Narusawa .................... 29

Development of the SANMOTION F Series
42 mm sq. 2-Phase 1.8° Stepping Motor Koji Nakatake and Others ..................................... 34
Development of the SANMOTION R ADVANCED MODEL
400 VAC Input Multi-axis Servo Amplifier Takashi Kataoka and Others .............................. 38
List of Technical Award Engineers of 67th JEMA of 2018

44

Major Patents

45Internal Recognition: Manufacturing Grand Prize (Excellence Award)

47

Technical Papers Published Outside the Company
in General Technical Journals (January to December 2017)47

Technical Papers Published Outside the Company (January to December 2017)

47

SANYO DENKI Continues
Moving Forward with People

Satoru Onodera
Operating Ofﬁcer

The SANYO DENKI Group’s corporate philosophy is “We at SANYODENKI Group Companies, aim to help all people achieve happiness, andwork with people to make their dreams come true.” Here, “people” refers
to society and the natural environment, customers and users, suppliersand vendors, investors and financial institutions, competitors and theindustry, and employees.
Working with these people, SANYO DENKI continues moving
forward every day “to help achieve happiness, and make dreams cometrue.” For example, we promote activities to create new value for ourcustomers and users through technology, products, and services. For
industry players and competitors, we engage in initiatives to build
industrial and technical development through technical alliances andcompetition. For our employees, we take a management approach thatwill allow employees to feel motivated and achieve self-fulfillment
through their work and company activities.
Presently, great changes are taking place in the world. Informationand communications technology is connecting machines with machines,
and machines with society, and it has become the norm for robots andautomated equipment in factories to make products, and for AI (artificial
intelligence) to process and use data.
With significant changes such as these taking place, let’s return tothe origin of monozukuri, so that we might understand the necessary
approach to monozukuri that should be valued to “help achieve
happiness, and make dreams come true” with “people.”
The aim of monozukuri is the processing and assembly of materials
and parts based on design information to create products with value.
Creating this value quickly and easily is the essence and mission ofmonozukuri.
The following three organizational capabilities are necessary to “makevalue quickly and easily.” Agility (speed and accuracy), flexibility (actaccording to the circumstances), and creativity (originality and ingenuity).
“Agility” means acting swiftly and accurately, “flexibility” means taking
action appropriate for the given circumstances in a constantly-changing

1

SANYO DENKI Technical Report No.45 May 2018environment, and “creativity” means being capable of originality andingenuity.
To enhance the agility of monozukuri, it is extremely effective to use
automated production lines with robots and ICT to connect components.
Next, to enhance flexibility, the creativity of people is a key factor. To
swiftly and easily make products with value the creativity of people inother words originality and ingenuity, is imperative.
In this issue, “Technical Developments in 2017” will introduce themain new products and technologies released in 2017.
Cooling Systems products, Power Systems products, and Servo Systems
products all incorporate originality and ingenuity to create value for thecustomers who use them.
For example, our G Proof Fan can be used with peace-of-mind
as it will not malfunction even in environments subjected to 75 G ofcentrifugal acceleration, commonly known as G-force. The High Static
Pressure Counter Rotating Fan has a large cooling effect even in devices
with high component density, so worry-free cooling design of devices ispossible. On our PV inverter, SANUPS W73A, optimal input voltage power characteristics can be set to suit wind power generators andhydroelectric power generators, therefore power generation systems canbe built with peace-of-mind. Moreover, our servo amplifiers equippedwith safety features and stepping motors with low acoustic noise and highefficiency can be used with peace-of-mind even for applications where
humans and equipment come in close contact.
In this way, we, the SANYO DENKI Group, offer products packed
with ideas to create new value and happiness for people in a swift andeasy manner.
By leveraging robots and AI, monozukuri with high agility andflexibility has become a reality. Now it is essential to leverage the creativityof people. SANYO DENKI wishes to continue connecting people, valuing
the connections between people, and moving forward together as one.

SANYO DENKI Technical Report No.45 May 20182

Feature: Technical Developments in 2017

Cooling Systems Division
Honami Osawa

There is an unstoppable trend
towards higher performance andinte g r ati o n in a w i d e r an g e ofmarkets. Prime examples include
ICT equipment such as servers andstorage systems, devices installedindoors such as power supplies, anddevices installed outdoors such as
the PV inverters, high-brightness
LED lighting, and electric vehicle

charging stations.
Cooling fans adopted in thesedevices are expected to offer higher
airflow and static pressure than everbefore.
Moreover, as a new application,
there is increasing demand forfans with high reliability even in
environments subjected to a large
centrifugal acceleration or “G-force.”■ G Proof Fan

DC Fan• 120 × 120 × 38 mm San Ace 120GP 9GP type• ø172 × 150 × 51 mm San Ace 172GP 9GP type

There has been a growing demand forfans able to be used in environments
subjected to centrifugal acceleration,commonly known as G-force.

environments with higher levels of
G-force.
I n order to meet such ma rket
requirements, SANYO DENKI has

One example is the fan used fordeveloped and released the San Ace

cooling the interior of medical CT

120GP and San Ace 172GP 9GP typescanners. It is believed that devices

G Proof Fans.

such as this will offer even higher

This fan’s level of G-force tolerance

performance and higher reliability

is 75 G (first in the industry* to use thisi n t he f ut u re, le ad i ng to g re at er

specification).

demand for fans that can withstand3

One example is the fan used forthe rotating parts of medical CT
scanners.
SANYO DENKI responded to suchdemands in 2017 by developing andlaunching fans with industry-leading*
performance and high reliability.
B el ow is an over v iew of the
products developed by S A NYO
DENKI Cooling Division in 2017.

SANYO DENKI Technical Report No.45 May 2018

■ Blower

DC Fan• 92 × 33 mm San Ace B97 9BMC typeThe 92 × 33 mm Blower is used in

I n order to meet such ma rket

various applications including servers,

requirements, SANYO DENKI has

power supplies, and printers.

developed and released the San Ace

Its applications are broadening to

B97 9BMC type Blower.

air purifiers, household ventilation

Compared to our current model (thesystems, fuel cells, etc. and, as such,

9BMB type), the new model has 1.15

requirements have emerged for eventimes higher maximum airflow and 1.5

higher airflow and static pressure.

times higher maximum static pressure.

■ Counter Rotating Fan

DC Fan• 40 × 40 × 56 mm San Ace 40 9CRH type

More and more, cooling fans are

requirements, SANYO DENKI has

required to have higher static pressure

developed and released the San Ace 40

to match the increased density and heat

9CRH type Counter Rotating Fan.

generation of devices in the server andpower supply markets.

Compared to our current model (the9CRV type), the new model has 1.62

Signif icantly higher coolingtimes higher maximum static pressure.

performance is required of 40 mm sq.

Details are introduced in the “Newfans, particularly for 1U servers, power

Product Introduction” article for this

supplies, and storage.

product.

I n o r d e r t o m e e t s u c h m a r ke t

■ Splash Proof Centrifugal Fan

DC Fan• ø221 × 71 mm San Ace 221W 9W2T type• ø225 × 99 mm San Ace 225W 9W2T type

ICT equipment installed outdoors,

Ace 225W 9W2T type Splash Proof

PV inverters, large A/C equipment,

Centrifugal Fans which offer industry-

industrial refrigerators, dust collectors,

leading* cooling performance.

etc., are expected to offer high airflow
and waterproof performance.

Each model has a waterproof ratingof IP56.

In response to market demands,

Details are introduced in the “NewSANYO DENKI has developed andProduct Introduction” article for thisreleased the San Ace 221W and San

product.

SANYO DENKI Technical Report No.45 May 20184

Feature: Technical Developments in 2017

■ Long Life Fan

DC Fan• 140 × 140 × 38 mm San Ace 140L 9LG type
• 140 × 140 × 51 mm San Ace 140L 9LG type14 0 m m s q . f a n s a r e u s e d i n a
broad ra nge of dev ices, i nclud i ng

38 mm and 140 × 140 × 51 mm San Ace

1.1 times higher maximum airflow,

140L 9LG type Long Life Fans.

2.7 times higher maximum static

ICT equipment, industrial inverters,

Compared to our current models offuel cells, rapid chargers, and digital

the 9L and 9LB types, the latest model

3 ti mes longer expected l i fe

signage. The internal heat generation of

boasts the following enhancements.

(180,000 h at 60˚C)these devices has increased, leading to•

140 × 140 × 38 mm

demands for higher airflow and static

San Ace 140L 9LG type:pressure. At the same time, fans with

1.7 times higher maximum airflow,

a longer service life are in demand due

5.2 times higher maximum static

to a shift towards maintenance-freepressure

devices with a longer lifespan.

1 . 8 t i m e s l o n g e r ex p e c t e d l i fe

I n o r d e r t o m e e t s u c h m a r ke trequirements, SANYO DENKI haspressure(180,000 h at 60˚C)•developed and released the 140 × 140 ×

140 × 140 × 51 mm
San Ace 140L 9LG type:■ Long Life Splash Proof Fan

DC Fan• 140 × 140 × 38 mm San Ace 140W 9WL type
• 140 × 140 × 51 mm San Ace 140W 9WL typeThe 140 × 140 mm Splash Proof Fan
is used on a wide-range of devices

9LG type, with the additional feature of

2.7 times higher maximum static

being water resistant.

pressure

installed outdoors such as PV inverters,

Compared to our current 9W andhigh-brightness LED lighting, and

9WB types, the latest model offers theelectric vehicle charging stations. To

following advantages:

handle the increased heat generation•

San Ace 140W 9WL type:only need to be water resistant, but also

1.7 times higher maximum airflow,

demonstrate higher airflow and static

5.2 times higher maximum staticpressure while lasting longer.

pressure
Equivalent expected life (100,000 h

developed and released the San Ace
14 0W 9W L type L ong Life Splash(100,000 h at 60˚C)

140 × 140 × 38 mm

from such applications, fans now not

In response, SANYO DENKI has

1 .7 t i m e s l o n g e r ex p e c t e d l i fe

at 60˚C)•

140 × 140 × 51 mm

Proof Fan. The new model is based on

San Ace 140W 9WL type:the aforementioned San Ace 14 0W

1.1 times higher maximum airflow,* Based on our own performance comparison research at the time of release of each product, among equally-sized industrial DC fanson the market.

Honami Osawa
Joined SANYO DENKI in 1989.
Cooling Systems Div. Design Dept.
Works on the design and developmentof cooling fans.

5

SANYO DENKI Technical Report No.45 May 2018

New Products Introduction

High Airflow Splash Proof Centrifugal
Fans San Ace 225W and San Ace 221W
Kakuhiko Hata

Masashi Miyazawa

Hayato Murayama

Nozomi Manji

Yuto Horiuchi

Tetsuya Yamazaki

Yukihiro Nagatsuka

1. Introduction
I n re c ent yea r s , due to h ig her p er for ma nc e a ndfunctionality, there has been a constant increase in theamount of heat generated by outdoor equipment such as
cellular base stations, ICT equipment, and PV inverters.
Accordingly, greater demands have emerged for coolingfans that offer both water resistance and high airflow.
Moreover, there is an increasing demand for waterproof,
high airflow fans for use in new applications such as large
air conditioning equipment, commercial refrigerators, dust
collectors, etc.
In response, SANYO DENKI has developed two highairflow Splash Proof Centrifugal Fans: San Ace 225W and

Fig. 1: ø225 × 99 mm San Ace 225W 9W2T type

San Ace 221W. This article will introduce the features andperformance of the high airflow Splash Proof Centrifugal
Fans S a n Ace 2 25 W and S a n Ace 2 21W 9W2T type
(hereinafter “new models”).

2. Product Features
Figures 1 and 2 show the external views of the newmodels.
The features of the new models are as follows:(1) High airflow(2) Dustproof and waterproof performance with an IP56
ingress protection rating*(3) PWM control function* IP56 ingress protection rating
The degree of protection (IP code) is defined by IEC(International Electrotechnical Commission) 60529 “DEGREESOF PROTECTION PROVIDED BY ENCLOSURES (IP Code)”(IEC 60529:2001)

Fig. 2: ø221 × 71 mm San Ace 221W 9W2T type

3. Product Overview
3.1 Dimensions
Figures 3 and 4 show the dimensions of the new models.

SANYO DENKI Technical Report No.45 May 20186

3.2 Specifications
3.2.1 General specifications

enables external control of the fan speed.
By controlling the fan’s speed to suit the device’s heatgeneration state rather than operating it at full speed

Tables 1 and 2 show the general specifications.

constantly, both the overall device power consumption and3.2.2 Airflow vs. static pressure
characteristics

noise can be reduced.

3.3 Expected life

Figures 5 and 6 show the airflow vs. static pressure
characteristics for the new models.

The new models have an expected life of 40,000 hours at
60°C (survival rate of 90%, run continuously at rated voltage

3.2.3 PWM control function

in free air and at normal humidity).

The new models have a PWM control function that

(10)

45°

71±1
63.5±1

Lead wire
AWG 18
UL 1430300
Airflow
direction

+30
0

45°

(10)
(70)

99±1.590.4±1.5
Airflow
direction

+30
0
(70)

300

Lead wire
AWG 18
UL 14304-M490°ø221±1
ø161±190°+2
ø225 0+2
ø153 0

4-M4

図版の文字

123

英語版用

Condens

8±
0.3

Times Ten
Airflow direction

ø118.6±1

ø53

ø118.6±1

8±0.
ø5Airflow direction

英語版用

Rotating direction

Rotating direction

Fig. 3: Dimensions of the ø225 × 99 mm
San Ace 225W 9W2T type (unit: mm)

Fig. 4: Dimensions of the ø221 × 71 mm
San Ace 221W 9W2T type (unit: mm)Table 1: General specifications of the ø225 × 99 mm San Ace 225W 9W2T type
Model no.

Rated
voltage[V]

9W2TS48P0S001

48

Operatingduty Rated
voltage PWM
cycle*
current
range
[%]
[A]
[V]

Rated
input
[W]

Rated
Max. airflow
speed[min-1] [m 3/min] [CFM]

Operating
SPL
temperature[dB(A)][˚C][Pa] [inchH2O]

100

2.45

117.6

3,000

23.5

830

635

2.55

72.0

15

0.24

11.5

1,000

7.83

276

70.6

0.28

52.5

36 to 72

Max. staticpressure-25 to +70

Expected life[h]40,000 at 60˚C
(70,000 at 40˚C)* Input PWM frequency: 25 kHz. Speed is 0 min -1 at 0% PWM duty cycle.
When equipped with our inlet nozzle [separately sold (model no.: 109-1134H)]

Table 2: General specifications of the ø221 × 71 mm San Ace 221W 9W2T type
Model no.

Rated
voltage[V]

9W2TP24P0H001

24

9W2TP48P0S001

48

Operatingduty Rated
voltage PWM
cycle*
current
range
[%]
[A]
[V]

Rated
input
[W]

Rated
Max. airflow
speed-1[min ] [m 3/min] [CFM]

Operating
SPL
temperature[dB(A)][˚C][Pa] [inchH2O]

100

3.35

80.4

3,050

17.6

621

530

2.13

71.5

15

0.4

9.6

1,000

5.75

203

57.0

0.23

53.5

100

2.3

110.4

3,400

19.6

692

659

2.65

73.5

15

0.2

9.6

1,000

5.75

203

57.0

0.23

53.5

16 to 36
36 to 72

* Input PWM frequency: 25 kHz. Speed is 0 min -1 at 0% PWM duty cycle.
When equipped with our inlet nozzle [separately sold (model no.: 109-1135H)]

7

SANYO DENKI Technical Report No.45 May 2018

Max. staticpressure-25 to +70

Expected life[h]40,000 at 60˚C
(70,000 at 40˚C)

High Airflow Splash Proof Centrifugal Fans San Ace 225W and San Ace 221W

48 VDCPWM duty 100%（Pa）
（inchH2O）

800

24/48 VDC
PWM duty 100%（Pa）
（inchH2O）

800

3.0

3.0
9W2TP48P0S001

9W2TS48P0S001
2.5

600
Static pressure

Static pressure

2.5

2.0

1.5

400

1.0

600

9W2TP24P0H001

2.0

1.5

400

1.0
200

図版の文字

200

0.5

123

英語版用

0.5

Condens

英語版用

0

0

5
0

200

10

15
400

25（m3/min）

20
600

800

（CFM）

0

Times Ten
0

5
0

200

4. Key Points of Development15
40025（m3/min）

20
600

800

（CFM）

Airflow

Airflow

Fig. 5: Airflow vs. static pressure characteristicsof the ø225 × 99 mm San Ace 225W 9W2T type10

Fig. 6: Airflow vs. static pressure characteristicsof the ø221 × 71 mm San Ace 221W 9W2T type

Due to the high current and high-heat generating control
circuit components, we originally considered adopting

Based on the performance and structural components ofa labyrinth sealing structure which allows enough space

our current High Airflow Centrifugal Fans San Ace C225

around the control circuit components for air ventilationand San Ace C221, the new models have adopted a structure

as an alternative to covering the electrolytic capacitor innever seen in our current Splash Proof Fans to achieve

epoxy resin, etc. Studying various structures, we had a hardhigher airflow.

time achieving both internal air ventilation and waterproof

The key points of development are explained below.

performance because securing ventilation air space aroundthe components always led to water ingress.

4.1 Waterproof design

Consequently, we adopted a new structure where only the

Our current Splash Proof Fans are available in two types ofmotor portion is covered in epoxy resin and the PCB andstructure. The first type covers the live parts (PCB, control

control circuit are contained in the space within the frame

circuit, motor) completely with epoxy resin, and the second

and top cover.

type has a waterproof labyrinth structure to contain the live
parts in its internal space.
The new models are large fans with high currents, therefore
an electrolytic capacitor is used. As the pressure valve

Figure 7 shows an external view of the live parts of the
new models.
The frame and top cover are aluminum and painted forincreased corrosion-resistance, improving reliability.

portion of the electrolytic capacitor must not be blocked, we
couldn’t employ the complete coverage with epoxy resin.

SANYO DENKI Technical Report No.45 May 20188

Motor portion covered with epoxy resin

Aluminum top cover (painted)

Control circuit sealed in the space
between the frame and top cover

Aluminum frame (painted)

Fig. 7: External view of the live parts of the new models

4.2 Heat dissipation design
to improve motor efficiency

Table 3: Motor efficiency comparison
Motor efficiency [%]Because the control circuit components of the newBase fan

New model

76

77

the electrolytic capacitor if the temperatures of the control

At minimum load
(at maximum staticpressure)circuit components and the surrounding air rise. Therefore

At maximum load

75

78

models are contained in a narrow space, the components
cannot be directly air-cooled. It could shorten the life of

there is a need to reduce the temperature rise in a way otherthan air-cooling.
The new models achieved higher motor efficiency and

48 VDCPWM duty 100%700

reduced heat generation by revising the motor height,
magnet height, and magnet material of the developmentbase high airflow Centrifugal Fan. Moreover, by using

New model
9W2TS48P0S001

600

a bigger PCB with no change in fan dimensions andoptimizing the arrangement of the high-heat generating500

achieving high airflow and waterproof performance.
Table 3 compares motor efficiency of the current modeland new model.

5. Comparison with our Current Model
Figu re 8 compares the ai r f low vs. static pressu re

Static pressure [Pa]components, we could reduce the temperature rise,

1.7 times

400

300
Current model
9W1TG48P0H61
200

characteristics of 9W2TS48P0S0 01 (ø225 × 99 mm),the highest-airflow model among the new models and
9W1TG48P0H61 (ø175 × 69 mm), the highest-airflow model100
2.6 times

among our current Splash Proof Centrifugal Fans.
The new model features significantly improved 2.6 times
higher maximum airflow and 1.7 times higher maximum
static pressure.

0

0

2

4

6

8

10

12

14

16

18

20

22

24

26

Airflow [m3/min]Fig. 8: Airflow vs. static pressure characteristics

図版の文字

9

SANYO DENKI Technical Report No.45 May 2018

123

英語版用

Condens

High Airflow Splash Proof Centrifugal Fans San Ace 225W and San Ace 221W

6. Conclusion
This article has presented some of the features andperformance of the high airflow Splash Proof Centrifugal

Kakuhiko Hata
Joined SANYO DENKI in 1997.
Cooling Systems Div., Design Dept.
Works on the development and design of coolingfans.

Fans San Ace 225W and San Ace 221W 9W2T type wedeveloped.
The new models achieved high airflow and an IP56
dust/waterproof rating by adopting a new water-resistant
structure, improving motor efficiency, and optimizing theMasashi Miyazawa
Joined SANYO DENKI in 1998.
Cooling Systems Div., Design Dept.
Works on the development and design of coolingfans.

arrangement of high-heat generating components.
The ø225 × 99 mm sized fan has achieved the industry’s
highest* airflow as a splash proof centrifugal fan. The San
Ace 221W 9W2T type fan is the first splash proof centrifugal
fan of its size in the industry.*

Hayato Murayama
Joined SANYO DENKI in 2006.
Cooling Systems Div., Design Dept.
Works on the development and design of coolingfans.

It is predicted that outdoor equipment will be generating
more and more heat and the demand for fans offering both

Yukihiro Nagatsuka

high airflow and waterproof capability will continue toJoined SANYO DENKI in 2013.
Cooling Systems Div., Design Dept.
Works on the development and design of coolingfans.

grow. It is also predicted that the demand for splash proof
centrifugal fans will continue to grow for new applications
such as air conditioning units and dust collectors.
By achieving both high airflow and dust/waterproof
performance, we believe that the new models can help solve
the issues our customers face.
SANYO DENKI will continue to stay ahead of theNozomi Manji
Joined SANYO DENKI in 2016.
Cooling Systems Div., Design Dept.
Works on the development and design of coolingfans.

diversifying market and develop products that create value
for our customers.

Yuto Horiuchi* Based on our own research as of July 3, 2017.

Joined SANYO DENKI in 2017.
Cooling Systems Div., Design Dept.
Works on the development and design of coolingfans.

Tetsuya Yamazaki
Joined SANYO DENKI in 1997.
Cooling Systems Div., Design Dept.
Works on the development and design of cooling
fans.

SANYO DENKI Technical Report No.45 May 201810

New Products Introduction

High Static Pressure Counter Rotating Fan
San Ace 40 9CRH Type
Shuji Miyazawa

Toshiyuki Nakamura

Kenta Nishimaki

Tetsuya Yamazaki

1. Introduction
In recent years, the density and heat generation of servers
and power supply devices have been increasing. Particularlyfor 1U servers, there is a requirement for 40 × 40 mm fanswith significantly higher static pressure performance.
SANYO DENKI has previously developed and released
a 40 × 40 × 56 mm counter rotating fan, however there is a
growing number of cases in which this fan cannot provide
the required cooling performance. For this reason, there
is increased demand for high static pressure fans that arecapable of cooling even high-density environments. Power

Fig. 1: 40 × 56 mm San Ace 40 9CRH typeconsumption and sound pressure level (SPL) are also
important issues.
In order to meet these requirements, SANYO DENKI

The features of the new model are:has developed and released the 40 × 40 × 56 mm highstatic pressure counter rotating fan San Ace 40 9CRH type(1) High static pressure(hereinafter, “new model”) which features a newly-designed(2) Low power consumption

impeller, frame, motor, and circuit.

(3) Low SPL

This article will introduce the features and performance(4) Optimal for 1U size unitsof the new model.

3. Outline of the New Model

2. Product Features

3.1 Dimensions

Figure 1 shows an external view of the new model.
Inlet

+30
0

Outlet(10)(5)

56±0.540±0.332±0.3

(5)

(10)

320

32±0.340±0.34-ø3.5±0.3
Mounting
hole

320

Figure 2 shows the dimensions of the new model.

+30
0Lead wire
AWG 24
UL 1061

Rotating direction

Airflow direction

4-ø3.5±0.3
Mounting
hole

Fig. 2: Dimensions of the new model (unit: mm)

11

SANYO DENKI Technical Report No.45 May 2018

Rotating
direction

High Static Pressure Counter Rotating Fan San Ace 40 9CRH Type

3.2 Characteristics
3.2.1 General specifications

The rated voltage is only 12 VDC, while the rated speed is29,500 min-1 on the inlet side, and 25,500 min-1 on the outlet

Table 1 shows the general specifications for the newside.

model.

Table 1: General specifications for the new model
OperatingRated
voltage
Model no.
voltage
range
[V]
[V]
10.8
9CRH0412P5J001 12
to
12.6

Rated speed[min-1]Max. staticpressure

PWM Rated Rated
duty
cycle current input
[A]
[W]
[%]

Inlet

100

2.52

30.24

29,500 25,500

0.93

32.9

1,700

6.83

70

20

0.06

0.72

3,000

0.08

2.8

17

0.07

20

Max. airflow

Outlet [m3/min] [CFM]2,600

Operating
SPL
Expected life
temperature[dB (A)][h][˚C][Pa] [inchH2O]-20 to +70

30,000 at
60˚C

4. Key Points of Development

3.2.2 Airflow vs. static pressure
characteristics
F i g u r e 3 s h ow s t h e a i r f l ow v s . s t a t i c p r e s s u r echaracteristics for the new model.

The new model maintains a maximum airflow equivalent
to that of the current model while offering significantly
improved static pressure performance. High speed is

3.2.3 PWM control function

essential to improving static pressure performance, so we

The new model has a PWM control function that enables

redesigned the impeller, frame, motor, and circuit to achieve

external control of fan speed.

this.

（inchH2O）（Pa）

the differences between the new model and the San Ace 40

Below, we explain the key points of development as well as
8.0
7.0

12 VDC

2000

9CRV type (hereinafter, “current model”).

1800

PWM duty 100%

4.1 Impeller design

1600

The impeller of the new model required sufficient strength

6.0

to withstand a high speed of approximately
30,000 min-1.
図版の文字

Static pressure

1400
5.0
4.0
3.0

123
Based on the results of previous reliability
evaluation

1200

英語版用and increased
tests, we used stress simulation technology

Condens

impeller blade thickness by approximately
1.4 times that of
英語版用

1000

Ten
the current model to maintain sufficientTimes
strength.

800

Figure 4 shows the impellers of the inlet and outlet fans.

600

Figure 5 compares the blade thickness of the new and

2.0
400
1.0
0

current models.
PWM duty 20%

200

0
0

0.1

0.2
5

0.3

0.4

10

15

0.5

0.6

0.7

20
25
Airflow

0.9

0.8
30

1.0（m3/min）
35（CFM）

Fig. 3: Airflow vs. static pressure characteristicsof the new model
Inlet

OutletFig. 4: Impellers of the inlet and outlet fans

SANYO DENKI Technical Report No.45 May 201812

Due to its higher speed, the new model has a higher powerBlade
thicknessBlade
thicknessconsumption than the current model, however the change
to a 3-phase motor has made it possible to reduce current
waveform peak fluctuation to around one-third that of the

1.4 times

current model.
Figure 7 is a comparison of current waveforms during
Current model

New model

steady operation.

Fig. 5: Comparison of current
and new model blade thicknesses

1/3

Increasing blade thickness has a significant impact
on airf low vs. static pressure characteristics, power
Current model(single-phase)

consumption, and SPL. However, by changing the inlet
and outlet fans’ impeller shape, mounting angle, and speed
combinations, then repeatedly using 3D printing andperformance evaluations for optimization, we successfully

New model(3-phase)

Fig. 7: Current waveforms during steady operation(comparison with current model)

achieved the target performance.

5. Comparison with Current Model
英語版用

4.2 Motor and circuit design

Condens

In order to increase fan speed, we redesigned the motor
stator and changed the motor drive type from single-phase

5.1 Comparison of airflow
Times Tenvs. static pressure characteristics
英語版用

to 3-phase.

The new model maintains the same maximum airflow as

The 40 × 40 mm fan not only features a small PCB, butalso adopts 3-phase motor, meaning it has a higher number

the current model but achieves 62% higher maximum staticpressure.

of electronic components than the current model, and we

Figure 8 provides an example of the airflow vs. static

were concerned that these could not all fit. As such, wepressure characteristics of the current model and the new

were creative in the selection and arrangement of electronicmodel.

components, which enabled us to build a new circuit withoutchanging the size of the PCB from that of the current model.

2000

Figure 6 shows the motor portion of the current model and1800

new model.

Voltage: 12 V
PWM Duty: 100%

New model
9CRH0412P5J001

1600

Static pressure [Pa]1400

Increased 62%

1200
1000
Current model
9CRV0412P5J201

800
600
400

Current model(single-phase)

New model(3-phase)

Fig. 6: Motors of the current model and new model

200
0

0

0.2

0.4
0.6
Airflow [m3/min]

0.8

1Fig. 8: Airflow vs. static pressure characteristics
of current and new models

13

SANYO DENKI Technical Report No.45 May 2018

図版の文字23

英語版用ondensHigh Static Pressure Counter Rotating Fan San Ace 40 9CRH Type

5.2 Power consumption comparison(when performance is equivalent
to the current model)

1400

80
Reduced 3 dB(A)

1200

70

When the speed of the new model is lowered by PWM
control and cooling performance at the assumed operating
point is equivalent to that of the current model, the newmodel consumes 10% less power than the current model.

Static pressure [Pa]performances are equivalent.

1000

60

800

50

600

40
Voltage: 12 V
PWM frequency: 25 kHz

400
24
Reduced 10%

Static pressure [Pa]

1600

20

1400

16

1200

12

1000

8

800

4

600
400

0.2

0.4
0.6
Airflow [m3/min]

0

0.2

0.4
0.6
Airflow [m3/min]

0.8

1

10

Fig. 10: Example of the airflow vs. static pressure
characteristics (comparison with current model)

6. Conclusion
performance of the 40 × 40 × 56 mm high static pressure

New model(PWM Duty 80%)
9CRH0412P5J001
020

New model(PWM Duty 80%)
9CRH0412P5J001

This article has introduced some of the features andCurrent model
9CRV0412P5J201

200
0

0

Voltage: 12 V
PWM frequency: 25 kHz

030

Current model
9CRV0412P5J201

200Power consumption [W]1800

SPL [dB(A)]

Figure 9 provides a comparison of power consumption forthe current and new models when their respective coolingcounter rotating fan San Ace 40 9CRH type developed by
0.8

図版の文字

1123

英語版用

CondensFig. 9: Example of the airflow vs. static pressure
characteristics (comparison with current model)
英語版用Times Ten

SANYO DENKI.
The new model has significantly higher static pressure
than our current model while maintaining equivalentmaximum airflow. Furthermore, when cooling performanceis equivalent to that of the current model, the new model
offers reduced power consumption and SPL.

5.3 SPL comparison (when performance isequivalent to the current model)
Another focus when designing the new model was
minimizing SPL and, as a result of innovative measures

We bel ieve these feat u res of the new model w i l lsignificantly contribute to the cooling of equipment that is
forecast to have even higher density and heat generation in
the future.

regarding inlet and outlet speed ratio and impeller shape, we

SANYO DENKI is committed to engaging in productsucceeded in reducing SPL compared to the current model.

development that helps to fulfill new dreams and offering

Figure 10 shows a comparison of SPL for the current andproducts that earn our customers’ satisfaction.

new model when cooling performances are equivalent.

英語版用Times Ten

SANYO DENKI Technical Report No.45 May 201814

High Static Pressure Counter Rotating Fan San Ace 40 9CRH Type

Shuji Miyazawa
Joined SANYO DENKI in 2012.
Cooling Systems Div., Design Dept.
Works on the development and design of coolingfans.

Toshiyuki Nakamura
Joined SANYO DENKI in 1999.
Cooling Systems Div., Design Dept.
Works on the development and design of coolingfans.

Kenta Nishimaki
Joined SANYO DENKI in 2012.
Cooling Systems Div., Design Dept.
Works on the development and design of coolingfans.

Tetsuya Yamazaki
Joined SANYO DENKI in 1997.
Cooling Systems Div., Design Dept.
Works on the development and design of cooling
fans.

15

SANYO DENKI Technical Report No.45 May 2018

Feature: Technical Developments in 2017

Power Systems Division
Naohiko Shiokawa

In April 2017, the feed-in tariff(FIT ) for renewable energy wassignificantly revised. The main pointof the revision was the transitionof focus from photovoltaic power
generation to others to promote
the installation of wind power,
thermal power, small/medium-scalehydroelectric power, and biomass
power generation systems. The FIT
scheme was established 5 years
ago, and now it has undergone amajor overhaul.
Furthermore, in the UPS market,
UPSs used as backup power fore q u i p m e nt o p e r a te d o u td o o r s(e.g. wireless base stations andpaid parking lots) need to be able
to w i thst and severe o p er ating
temp eratures and re quire les smaintenance.
To meet such market requirements,
Power Systems Division developed
and released the following products
in 2017.

For the renewable energy market,
we d evel o p e d t h e P V inver ter
SA N U P S P73 L . T h e P 7 3 L c a nconnect to batteries so that PV
panel-generated power and battery
power can be supplied during power
outages. Furthermore, this producthas a peak cut function and canstore power during the night in its
battery, which can be used together
with the PV-generated power during
the daytime.
Power Systems Division has also
developed SANUPS W73A, a power
conditioner for wind power andhydro power generation systems.
The W73A allows arbitrary settingof the DC input voltage - power
characteristics to suit the specificsystem so that the wind wheel orwater turbine can generate power
ef ficiently. This is Japan’s first3 - phase power inver ter for use
in wind power and hydroelectric
power generation systems thate n a b l e s a c c u r a te a n d o p t i m a lpower generation settings to suit
the specific wind wheel or water
turbine.*For the UPS market, we havedeveloped SANUPS A11K- Li and
SANUPS N11B-Li as UPSs equippedwith Li - ion batteries, which
outperform lead-acid batteries interms of environmental durability andservice life. The A11K-Li and N11B-Li
have operating temperature rangesof -20 to +55˚C and -20 to +50˚C,respectively. Both of these products
are capable of withstanding harsh
operating environments. Moreover,there is no need to replace thebattery for ten years, making these
UPSs maintenance-free.
This article will briefly describe thefeatures of these new products.
* Based on our own research as of October
11, 2017, among power inverters for wind
power and hydroelectric power generation
systems.

SANYO DENKI Technical Report No.45 May 201816

Feature: Technical Developments in 2017

■ SANUPS P73L - PV Inverter with Peak Cut Function
SA N YO DE N K I a l ready of fer s
SANUPS P73K as a PV inverter withisolated , cha rg i ng t y pe a nd g r idconnected, isolated type.

a peak cut function supporting Li-

T he g r id- con nected, isolated,

ion batteries. However, in 2017, we

charging type supports peak power

developed SANUPS P73L based on

cut by supplying the power of its PV

the SANUPS P73K with new functions

panel and storage battery to a generala d d e d to me et t he l at e st m a rket

load via the isolated converter circuit

demands.

and inverter circuit equipped in the PV

The SANUPS P73L is comprised of ainverter unit. Moreover, it can supply

10 kW PV inverter unit, 10 kW charging

AC power to the isolated operation

unit, and I/O box, with the ability to add

output during power outages on theup to six 10 kW PV inverter units as agrid.

scalable system. This product comes in

The SANUPS P73L has the following

the “grid-connected, isolated, charging

four operation modes: grid-connectedtype” and “grid-connected, isolated

operation mode, peak cut operation

type,” with output capacities ranging

mode, charging operation mode, andfrom 10 to 60 kW.

isolated operation mode. Figure 2 shows

Figure 1 shows the appearance of
the SANUPS P73L grid-connected,

Grid-connected,
isolated type
30 kW

Fig. 1: SANUPS P73L

the switchover between these operation
modes.

■ Grid-connected mode
PV panel

Grid-connected,
isolated,charging type
30 kW

■ Peak cut mode
Load forpower outage
use

General load

PV panel
Commercial
power

Power
transducer

Load forpower outage
use

General load

Commercial
power

Power
transducer

Storage battery

Storage battery

図版の文

123

英語版用

■ Charging mode
PV panel

Load forpower outage
use

General load

英語版用Times T

PV panel
Commercial
power

Commercial
power

Power
transducer

Storage battery

Storage battery
Schedule setting

Fig. 2: Switchover between operation mode17

Condens■ Isolated mode

SANYO DENKI Technical Report No.45 May 2018

Manual, automatic, or remote switchover■ SANUPS W73A - Power Conditioner

for Wind Power and Hydro Power Generation Systems

A s t h e n ex t r e n ew a b l e e n e r g y

the specific power generation system.

fol low i ng photovolta ic power

T he SA NUPS W 73A has been

generation, wind power and small/equipped with a DC input voltage -medium-scale hydroelectric

DC input power characteristics setting

power generation are expected tofunction which can match thegrow. T he 10 kW class small windcharacteristics of wind power andpower generation a nd sma l l- sca lehyd ro el e c t r i c p owe r ge n e r at io n .

hydroelectric power generation often

Figure 3 shows the appearance of theuse permanent magnet generators and,

SANUPS W73A.

just as PV power generation, there is a

It is possible to set a m i n i mu m

demand for easy-to-use DC-AC powerof 2 a nd ma x i mu m of 32 power

inverters.

character istic settings, and power

In 2017, SANYO DENKI developed

characteristics set once can easily be

SANUPS W73A, a power conditioner

added, changed, or deleted. Moreover,for wind power and hydroelectric power

this product was designed presuming

generation systems which convertsu s e o n va r iou s s y s t e m s , a nd t he

the generated DC power and allows

operation starting/stopping voltages

arbitrary settings of DC input voltage -can be set arbitrarily.

Fig. 3: SANUPS W73A

DC input power characteristics to suit

SANYO DENKI Technical Report No.45 May 201818

Feature: Technical Developments in 2017

■ Small-Capacity UPS SANUPS A11K-Li and SANUPS N11B-Li Series
In recent years, there has been anoffer the benefits of operating in ai ncreased dema nd for the backup

wider temperature range, extended

power for outdoor facilities such as basebackup time in smaller installation

stations, traffic lights, paid parking lots,

space, and maintenance-free operationand surveillance cameras. In addition

due to the eliminated need for battery

to the ability to withstand temperatures

replacement.

and other harsh operating environment

Figures 4 and 5 show the appearance

conditions, UPSs installed outdoors areof the SANUPS A11K-Li and SANUPS

required to have smaller footprint andN11B-Li series, respectively.

extended backup time, and require lessmaintenance.

Thanks to their LIB, the SANUPS
range of -20˚C to +55˚C, while thelead-acid batteries. However, they have

SANUPS N11B-Li has one of -20˚C

a limited operating temperature range

to +50˚C, meaning that both products

and short backup time towards the end

can be used with confidence even inof their life cycle, requiring replacing.

extremely cold or hot regions.

Moreover, to achieve extended backup

The conventional UPSs with lead-t i me, more bat ter ies a re needed ,acid batter ies requ i red batter yrequiring more installation space.

replacement approximately every fiveAs such, in 2017, SANYO DENKI

years, but by adopting LIB, these newdeveloped SA NUPS A 11K-Li andproducts can be used for up to ten years

SANUPS N11B -Li series as small-without battery replacement. Moreover,capacity UPS equipped with Li-ion

these products are approximately a halfbatteries (LIB).

in volume than conventional UPSs,
requiring less installation space.

double conversion online topology,

The SA NUPS N11B -Li adopts aand is available in output capacities ofsealed structure, therefore has excellent

1.5 kVA, 3 kVA, and 5 kVA.

water resistance and protection against

T he SA NUPS N11B -Li featu res

solid foreign objects including small

the passive standby topology, and is

insects and animals. This means it canavailable in output capacities of 1 kVA

be used outdoors with confidence.

and 1.5 kVA. The SANUPS A11K-Li

Both series are equipped with a

can be used as backup power for indoor

battery management unit and feature

equipment including servers while

a data interface between the UPS andthe SANUPS N11B-Li can be used as

LIB. By monitoring detailed LIB data,

backup power for equipment installed

and performing mutual protective

outdoors.

operations and fault detections between

Compared to UPSs with conventional
lead-acid batteries, both of these series

UPS and LIB, the LIB can be usedsafely.

Naohiko Shiokawa
Joined SANYO DENKI in 1989.
Power Systems Div., Design Dept.
Works on the development and design of power
supplies.

19

Fig. 4: SANUPS A11K-Li series

A11K-Li has an operating temperature

Conventionally, U PSs have used

The SANUPS A11K-Li features the

1.5 kVASANYO DENKI Technical Report No.45 May 2018

1.5 kVA

Fig. 5: SANUPS N11B-Li series

New Products Introduction

Development of the SANUPS W73A
Power Conditioner for Wind Powerand Hydro Power Generation Systems
Masahiro Inukai

Takeshi Hama

Masahiro Uchibori

Sho Niimura

Hirofumi Nishizawa

Tetsuya Fujimaki

An outcome of the 21st yearly session of the Conferenceof the Parties (COP21) of the United Nations Climate
Change Conference, held in late 2015, was the adoption of
the Paris Agreement, whereby member states declared theircommitment to suppressing temperature increase to lessthan 2˚C above pre-industrial levels and ongoing efforts tolimit the temperature increase to 1.5˚C.

Generator output power ⇒1. Introduction

In response, the Japanese government passed a cabinet
decision on the Plan for Global Warming Countermeasuresin 2016. This plan states that renewable energy is an
essential countermeasure against global warming andstressed it must be adopted to the maximum extent
possible. (1)00Generator output voltage ⇒Fig. 1: Example of wind power generator output
characteristics and the output characteristicsof SANYO DENKI’s current model

Consequently, there is growing attention and heightened
expectations not only for photovoltaic, but also for windand hydroelectric power, as forms of renewable energy.

voltage - DC input power characteristics setting function

SANYO DENKI has newly developed the SANUPS W73A

to the SANUPS W73A which enables the user to set power

power conditioner for wind power and hydro power

generation characteristics identical to the maximum output

generation systems, which enables the user to arbitrarily

characteristics of wind and hydroelectric power generators.

set the DC input voltage - DC input power characteristics
to match a specific system. This article will introduce thefeatures of this new product.

2. BackgroundFigure 1 shows an example of output characteristics for3. Overview and Specificationsof the SANUPS W73A
Figure 2 shows the appearance of the SANUPS W73A,
Figure 3 shows its basic circuit configuration, and Table 1
provides its specifications.

a typical wind power generator and output characteristics

The SANUPS W73A adopts a high-frequency isolationof SANYO DENKI’s current PV inverter (hereinafter

type converter and is capable of direct connection not“current model”).

reliant on the grid-side electrical mode.

As Figure 1 demonstrates, the output characteristics ofthe current model sometimes deviated from the maximum
output characteristics of a wind power or hydroelectric
power generator, therefore it was not possible to effectively
generate power.
In order to solve this issue and use power more effectively
than the current model, SANYO DENKI added a DC input

SANYO DENKI Technical Report No.45 May 2018

20

MCCB

Isolation
converter

DC/AC
inverter
circuit

FilterFilter

DC
input

MC

MCCB

Grid
outputSignalinput

Fig. 3: Basic circuit configuration
Fig. 2: SANUPS W73A
Table 1: Specifications of the SANUPS W73A
Model Grid-connected type
W73A992R

Item
Output capacity

9.9 kW

Main circuit typeSelf-commutated voltage type

Switching method

High-frequency PWM

Isolation method

High-frequency isolation type

Cooling method

Forced air cooling
Rated voltage

DC
input

Gridconnected
operationACoutput123

Remarks

英語版用

Condens

英語版用

Times Ten

400 VDC

Maximum allowable input voltage 570 VDC
Input operating voltage range

150 to 570 VDC

No. of input circuits

1 circuit

No. of phases/wires

3-phase 3-wire

Rated voltage

202 VAC

Rated frequency

50 Hz / 60 Hz

Rated output current
AC output current
harmonic distortion

28.3 AAC
Total current: 5% or less, individual
harmonic order: 3% or less

Rated output range 250 to 540 VDC

Rated output current ratio

0.95 or greater

At rated output with a power factor
setting of 1.0
Power factor setting range: 0.8 to 1.0(in increments of 0.01)

Efficiency

93%

Efficiency measurement methodin accordance with JIS C 8961
With a power factor setting of 1.0

Grid protection

Overvoltage relay (OVR),
undervoltage relay (UVR),
overfrequency relay (OFR),
underfrequency relay (UFR)

Overvoltage ground relay (OVGR)
shall be externally connected
and normally-closed dry contact input
shall be the standard

Output power factor

Passive method

Communication

Voltage phase jump detection
Frequency feedback methodwith step injection
RS-485Noise

Up to 50 dB

A-weighting, 1 m from front of unit
Output is derated above 40˚C

Islandingdetection

Operatingenvironment

21

図版の文字

Active method

Ambient temperature-25 to +60˚C

Relative humidity

Below 90% (non-condensing)

Altitude2000 m max.

Paint color

Munsell 5Y7/1 (semi-gloss)

Heat dissipation

745 W

Mass

64 kg

SANYO DENKI Technical Report No.45 May 2018

Development of the SANUPS W73A Power Conditioner for Wind Power and Hydro Power Generation Systems

4. Features of the SANUPS W73A

4.2 Function for setting operation-start
voltage and operation-stop voltage

4.1 DC input voltage - DC input power
characteristics setting function

Based on the assumption that the SANUPS W73A will be
used with a variety of systems, SANYO DENKI has made it

Figure 4 shows an example of DC input voltage - DC input
power characteristics (hereinafter “power characteristics”)

possible for the user to arbitrarily set the operation start andstop voltages.
Operation-start and operation-stop voltages can be set

settings.
Power characteristics can be set to match the output

within the setting ranges shown below. However, the upper

characteristics of a specific wind power generator or

limit setting of the operation-stop voltage range has to be athydroelectric power generator. It is possible to set from 2

least 10 V lower than that of the operation-start voltage.

to 32 power characteristics settings, and once set power•

characteristics can easily be added, changed, or deleted.

Setting range for operation-start voltage: 230 to 400 VDC(Set in increments of 1 V)

DC input voltage can be set in increments of 1 V within
the range of 150 to 540 V and DC input power can be set in•

Setting range for operation-stop voltage: 150 to 320 VDC(Set in increments of 1 V)

increments of 10 W within the range of 0 to 11,000 W.

4.3 Remote monitoring service
The SANUPS W73A can be connected to SAN YO
10000

DENKI’s SANUPS PV Monitor for remote monitoring and

DC input power [W]data collection/analysis via a network.
8000

Furthermore, by using the SANUPS NET condition
monitoring service, SANUPS W73A system status can be

6000

monitored via the internet from devices such as computersor smartphones.

4000

S A N U P S N E T u s e r s c a n s el e c t e it h e r a p owe r
visualization service or system information management

2000

0

service, depending on their needs.
The power visualization service displays the power
0

100

200

300

400

500

図版の文字

generation status
and collects data. In addition to visualization,
123

600

DC input voltage [V]the system英語版用
information management service provides
CondensFig. 4: Example of power characteristics settings

notifications of operational status, the occurrence of trouble
英語版用or alarms, Times
and Tenequipment fault recovery. It also displays achronological history of alarms and fault recovery for reference.
Figure 5 shows an example of a remote monitoring
connection using the SANUPS PV Monitor and SANUPSNET.

Installation locationsof wind power generation/hydroelectric generation systems

Cloud serverType C

RouterInternet

Serial communications(RS-485)

Mobile communication packRemote monitoring(PC, smartphone)Power inverter

Fig. 5: Example of remote monitoring connection

SANYO DENKI Technical Report No.45 May 201822

Development of the SANUPS W73A Power Conditioner for Wind Power and Hydro Power Generation Systems

4.4 Adoption of a frequency feedback
method with step injection

with large-scale deployment of renewable energy. We willachieve our goal of realizing new dreams together with

As an active islanding detection method, the SANUPS

our customers by quickly bringing products to market in

W 73A uses a f requency feedback method w ith step

addition to incorporating smart grid technologies and otherinjection (hereinafter “new active method”) which involves

innovative technologies. Furthermore, we will contributechanging the AC voltage frequency and detecting frequency

to the creation of a low carbon society by offering products

change by injecting the reactive power calculated fromcompatible with all renewable energy forms.

the frequency deviation that occurs when there is a power
outage.
In principle, the new active method is characterized by notcausing interference with other active methods, and is usefulwhen connecting multiple power inverter units.

Reference(1) Ministry of Environment’s Planfor Global Warming Countermeasures
http://www.env.go.jp/press/files/jp/102816.pdf (Japanese only)

4.5 Power factor correction function
As a countermeasure to the problem of increased electricalvoltage in the power distribution grid due to the large-scale

Masahiro Inukai

introduction of renewable energy, the SANUPS W73A has

Joined SANYO DENKI in 2009.
Cooling Systems Div., Design Dept.
Worked on the development and design of PV
power systems in the Power Systems Div.,
Design Dept. until 2017.

the ability to change the power factor during grid-connected
operation. This makes it possible to change the output power
factor during grid-connected operation to a value between
0.8 and 1.0, which means increases in grid voltage can be
minimized without the need to install special-purpose

Takeshi Hama

equipment or reinforce wiring.

Joined SANYO DENKI in 1986.
Power Systems Div., Design Dept.
Works on the development and design of PV
power systems.

4.6 Dustproof/waterproof performance
The SANUPS W73A, as a power inverter for outdoor use,
has a protection rating of IP65 and a sealed structure with

Hirofumi Nishizawa

excellent dustproof and waterproof properties. This protects

Joined SANYO DENKI in 1997.
Power Systems Div., Design Dept.
Works on the development and design of PV
power systems.

equipment from the ingress of rain, dust, small insects, andso on, and makes for a highly-reliable product that can beused with greater peace of mind.

Tetsuya Fujimaki

4.7 Weather shelter
A weather shelter is an optional enclosure for the
SANUPS W73A to serve as a heat shield, enabling it to be

Joined SANYO DENKI in 2011.
Power Systems Div., Design Dept.
Works on the development and design of PV
power systems.

installed in locations exposed to direct sunlight.
Since weather shelters are assembled onsite, and do
not require modifications to the unit, the IP65 protection
performance of the SANUPS W73A is maintained.

5. Conclusion
T his article has brief ly provided an overview andintroduced the features of the SANUPS W73A power
conditioner for wind power and hydro power generation
systems. This device helps to conserve the environment
by promoting the introduction and effective utilization ofrenewable energy.
For future product development in related fields, SANYODENKI will strive to alleviate the problems that come23

SANYO DENKI Technical Report No.45 May 2018

Masahiro Uchibori
Joined SANYO DENKI in 2013.
Power Systems Div., Design Dept.
Works on the development and design of PV
power systems.

Sho Niimura
Joined SANYO DENKI in 2017.
Power Systems Div., Design Dept.
Works on the development and design of PV
power systems.

New Products Introduction

Development of the SANUPS N11B-Li(3 kVA) Uninterruptible Power Supply
Takeo Murai

Shinichiro Yamagishi

Hideaki Yoda

Yasuhiko Ogihara

Hirofumi Kimura

Yuhei Shoyama

Kazuya Yanagihara

Shota Ozawa

Kazuya Hiraguri

Daisuke Tsuchiya

Shota Takahashi

1. Introduction
Conventionally, SANYO DENKI has offered UPSs forindoor use as backup power for servers and ICT equipment
or in combination with industrial devices. However, in
recent years, there has been a growing demand for UPSs
as backup power for outdoor ICT equipment, such asbase stations and remote monitoring devices for disasterprevention.
E qu ipment for outdoor u se i s i n st a l led i n ha r sh
environments with large variation in temperature as well
as exposure to water, dust and the like. For this reason, the
UPSs for outdoor use need to be capable of operating in awide temperature range, have water and dust resistance, andrequire less maintenance.
To date, UPSs have used lead batteries; however, thesehave a limited operating temperature range, short backup
time towards the end of their life cycle, and require
replacing.
By adopting lithium-ion batteries (hereinafter “LIB”),
UPSs can be used in a wider operating temperature range
compared to conventional lead batteries and require lessFig. 1: SANUPS N11B-Li (3 kVA)

maintenance, as battery replacement is required much lessfrequently.
SANYO DENKI has already developed the water/dust-

2.2 Features
2.2.1 Wide operating temperature range

resistant SANUPS N11B-Li series UPS equipped with LIB

The wide operating temperature range of -20 to +50˚C isin output capacities of 1 kVA and 1.5 kVA. However, weachieved through the adoption of an LIB. This means thishave newly added a 3 kVA output model to the lineup to

product can be used with confidence in extremely hot orprovide backup power for large capacity applications suchcold environments.

as outdoor ICT equipment. This article will introduce thefeatures of this new product.

2.2.2 Low maintenance

2. Overview and Featuresof the Productfive years, but by adopting LIB, the new model can be

2.1 Product overview

replacement costs can also be reduced.

Lead batteries require replacement approximately every
used for up to ten years without needing to replace thebattery. This reduction in maintenance work means battery

Figure 1 shows the appearance of the SANUPS N11B-Li(3 kVA).

SANYO DENKI Technical Report No.45 May 201824

2.2.3 Improved maintainability

excellent water resistance and protection against dust. As

Tasks such as battery replacement have been made easythrough the modularization of the inverter. Figure 2 shows
an image of the SANUPS N11B-Li (3 kVA) equipped withsuch, it can be used outdoors with confidence.
The new model achieved an IP rating of IP65* in a
protection performance test.

an inverter module and battery modules.
This product has a maintenance bypass circuit, therefore
modules can be replaced without the need to interrupt
power supply from the grid.

* The degree of protection (IP code) is defined by IEC(International Electrotechnical Commission) 60529 “DEGREESOF PROTECTION PROVIDED BY ENCLOSURES (IP Code).”(IEC 60529:2001)
IP65: No ingress of dust. Devices operate stably even when
directly exposed to water from many directions.

3. Circuit Configuration
Figure 3 shows the circuit diagram for the SANUPS
N11B-Li (3 kVA).
The SANUPS N11B-Li (3 kVA) integrates an “inverter
module” consisting of a main circuit and a control circuit,
Inverter moduleand an “I/O portion” consisting of a communication
i nter fac e c i rcu it, i nput /output c i rcu it, a nd bat ter y
management unit (BMU), and battery modules.

3.1 LIB monitoring circuit configuration
Equipped with a BMU, this product features a datainterface between the UPS and LIB. By monitoring detailed
LIB data, and having the UPS and LIB perform mutual
protection operations and fault detections, the LIB can beused safely.
Battery modules

Fig. 2: Inverter module and battery modules(SANUPS N11B-Li (3 kVA))2.2.4 Enhanced functionality
An LCD panel is used on the operation panel to improveuser-friendliness and visibility.

(1) UPS error detection
When a UPS error occurs, notification is sent from the
UPS to the BMU via CAN communication. Once the
BMU receives notification, it trips the battery breaker.
(2) LIB error detection
When an LIB error occurs, notification is sent fromthe BMU to the UPS via CAN communication. In
response, the UPS stops the charger’s output. Moreover,2.2.5 High energy-saving
and reduced heat dissipation

as soon as the BMU detects an LIB error, it trips thebattery breaker.

With the passive standby topology, the SANUPS N11BLi (3 kVA) suppresses power consumption and achieves a
conversion efficiency of 96%. This reduces running costs
and contributes to energy-saving.

(3) Monitoring LIB cell voltage and cell temperature
C ell voltage and temperature are measured in
the battery module and the BMU is notified of themeasurement values through CAN communication.

2.2.6 Outdoor installation

If the cell becomes over-charged, over-discharged, or

The SANUPS N11B-Li (3 kVA) adopts a sealed structure.

reaches an abnormal temperature, the BMU determines

This makes it possible to use the new model as backup powerthat an LIB error has occurred and, as mentioned infor ICT equipment installed outdoors.

section (2) above, trips the battery breaker and separates
the UPS from the LIB.

2.2.7 Water and dustproof performanceThis device adopts a sealed structure, therefore has

25

SANYO DENKI Technical Report No.45 May 2018

Users can check the measured values for battery voltage,cell temperature, and state of charge on the LCD panel.

Development of the SANUPS N11B-Li (3 kVA) Uninterruptible Power Supply

Maintenance breaker

40A

Maintenance bypass circuit

Arrester

Fuse

FilterInput breaker(switch)

FilterAC input

Electronic switch

Grid power circuit

Invertermodule(main)

Inverter

RectifierServicepower
outletAC
output

40A

5A
a

DC/DC
converter
G

Outputbreaker

ArresterG

Control

FE

Fuse

＜

Fuse

Electronic switch

Grid power circuit

Invertermodule(sub)Inverter

RectifierDC/DCconvertera

PC I/F+12 V
power source

Interface

Fuse

CARD I/F
CHG I/F
BATT I/F
SIGNAL│REMOTE

Battery breaker

Current sensor
Relay board

CMU

BMU
CMU

Battery modules

Fig. 3: Circuit diagram for the SANUPS N11B-Li (3 kVA)

SANYO DENKI Technical Report No.45 May 201826

4. Specifications
Table 1 shows the standard specifications of the SANUPS
N11B-Li (3 kVA).

Table 1: Specifications of the SANUPS N11B-Li (3 kVA)
Item
Model
Rated power capacity
Type

AC
input

AC
outputUnit

Ratings and characteristics−

N11BL302

kVA/kW

3/2.4

UPS topology−

Passive standby

Cooling method−

Inverter system−

No. of phases/wires−

Forced air coolingHigh-frequency PWM method(during battery operation)
Single-phase 2-wire

Rated voltage

V100, 110, 120

Voltage range%

Within ± 10 of rated voltage

Rated frequency

Hz

50/60

Commercial synchronous online double conversion
Same as output voltage

frequency

Frequency is automatically detected(The fluctuation range is the sameas the selected output frequency regulation)
Max. capacity during battery recovery charging%

Required capacitykVA

4 or less

No. of phases/wires−

Single-phase 2-wire

Rated voltage

V100, 110, 120

Voltage regulation%

Rated frequency

Hz

Frequency regulation%

Voltage harmonic distortion
Rapid load
TransientchangevoltageLossor returnregulationof input power
Power factor%

During grid operation:
Same as input voltage range
During battery operation:
Within ± 2 of rated voltage
50/60
During grid operation:
Same as input frequency range
During battery operation:
Within ± 0.5
3 or less / 7 or less%Within ± 7 of rated voltage%

Within ± 5 of rated voltage−

0.8 (lagging)%

Output breaker trip%

Apparent power/Active power

Within ± 1, 3, 5, or 7 of rated

Frequency range

Overcurrent protection
During grid
operation
Overload
capability During battery
operation
Type

Remarks

200/800
105 or greater

Voltage waveform during battery operation:
Pure sine wave

At rated output
Same as input frequency

At rated output
During battery operation, at rated output
During battery operation, for 0 ⇔ 100% load stepchanges / output switch
During battery operation, at rated output
Variation range: 0.7 (lagging) to 1.0
30 s / 2 cycles
200 ms−Lithium-ion battery (LIB)

Minute

30

Noise

dB

43 or less

IP rating

−

IP65

˚C

-20 to +50*%

10 to 90

Non-condensing

˚C-20 to +55**

Battery

Operatingenvironment
Storage environment

Backup timeAmbient
temperature
Relative
humidity

Ambient temperature 25˚C, at rated output,
under factory conditions
1 m from front of device, A-weighting* Battery charging should be stopped when battery temperature exceeds 55˚C.
** To prolong battery life, avoid use or storage for extended periods of time in environments exceeding +30˚C. If the UPS is stored without
being operated for a long period, the batteries may require recharging once a year.

27

SANYO DENKI Technical Report No.45 May 2018

Development of the SANUPS N11B-Li (3 kVA) Uninterruptible Power Supply

5. Advantage for Customers
Below is a list of customer advantages gained by adopting
this device.

Hideaki Yoda
Joined SANYO DENKI in 1991.
Power Systems Div., Design Dept.
Works on the development and design of UPS.

(1)B roader selection of applications and installation
environments due to a wider operating temperature

Yasuhiko Ogihara

range

Joined SANYO DENKI in 1991.
Power Systems Div., Design Dept.
Works on the mechanism and design of UPS.

(2)R e d u c e d m a i n t e n a n c e c o s t s t h a n k s t o l o w maintenance batteries(3)In the unlikely event of a problem, maintenance work
can be performed without interrupting power supply to

Hirofumi Kimura

the load equipment.

Joined SANYO DENKI in 2007.
Power Systems Div., Design Dept.
Works on the development and design of UPS.

(4)Able to backup ICT equipment and outdoor equipment
even in harsh environments.
(5)Sealed structure enables use in environments exposed
to dust and rain.

6. Conclusion

Yuhei Shoyama
Joined SANYO DENKI in 2009.
Power Systems Div., Design Dept.
Works on the development and design of UPS.

Moving for ward, information and com munication
technologies will undergo even further sophistication andKazuya Yanagihara

play an even more important role in society. UPSs are used

Joined SANYO DENKI in 2013.
Power Systems Div., Design Dept.
Works on the development and design of UPS.

in a variety of applications and environments, and it isbelieved that the demand for environmental durability willcontinue to intensify. To satisfy these market requirements,
SANYO DENKI will enhance our lineup of UPS equipped

Shota Ozawa

with LIB.

Joined SANYO DENKI in 2014.
Power Systems Div., Design Dept.
Works on the development and design of UPS.

It is our goal to develop products that create value for ourcustomers by responding to the diversifying needs of the
UPS market.

Kazuya Hiraguri
Reference
Yuhei Shoyama and others: “Development of the Small-Capacity

Joined SANYO DENKI in 2016.
Power Systems Div., Design Dept.
Works on the development and design of UPS.

UPS SANUPS A11K-Li and SANUPS N11B-Li Series” SANYODENKI Technical Report No. 44

Daisuke Tsuchiya
Joined SANYO DENKI in 2016.
Power Systems Div., Design Dept.
Works on the mechanism and design of UPS.

Takeo Murai

Shota Takahashi

Joined SANYO DENKI in 2012.
Power Systems Div., Design Dept.
Works on the development and design of UPS.

Joined SANYO DENKI in 2017.
Power Systems Div., Design Dept.
Works on the development and design of UPS.

Shinichiro Yamagishi
Joined SANYO DENKI in 1991.
Power Systems Div., Design Dept.
Works on the development and design of UPS.

SANYO DENKI Technical Report No.45 May 201828

Feature: Technical Developments in 2017

Servo Systems Division
Yasutaka Narusawa

The applications and requirements
for servo systems are diversifying
in line with changes in societ ya n d i n d u s t r i a l s t r u c t u re , s u c h
as a declining bir th rate, aging
society, and globalization. Againstt h i s b a c kd r o p , S A N YO D E N K I
develops products which solve ourcustomers’ issues and contribute tosociety.
This ar ticle will outline thefeatures of our new products from2017: one stepping motor and three
servo amplifiers, telling how they
can contribute to customer value.
First, as for stepping motor products,
we released the SANMOTION F
series 42 mm sq. 2- Phase 1.8 ˚
s t e p p i n g m o t o r fe a t u r i n g l o w
noise and eco - efficiency. In thedevelopment of this product, we
not only strived to achieve higher
performance, but also put an effort
to automate the production process,29

resulting in increased productivity.
Next, regarding servo amplifier
products, we added a 4 0 0 VAC
input multi-axis servo amplifier tothe SANMOTION R ADVANCEDMODEL series. The addition ofmulti - axis 4 0 0 VAC input ser vo
amplifiers to the current single-axis
servo amplifier lineup significantly
expands customer options, enabling
the selection of the best ser vosystem for customer equipment.
Moreover, we added an EtherCATenabled ser vo amplifier to the
SANMOTION R 3E Model series.
This product achieves an industryleading minimum communication
cycle of 62.5 µs (a half compared
to conventional), and contributes tofurther improving the processing
quality. In addition, the amount ofdata transfer in one communication
cycle has increased to 1.6 times.
A large amount of data c an be

SANYO DENKI Technical Report No.45 May 2018

collected in real -time, which
contributes to the visualizationof equipment operating status,
as well as the IoT system withapplications such as equipment
failure prediction.
We also released SANMOTION R
3E Model Safety servo amplifierswith diverse safety functions andhigh safety performance. In recent
years, in an increasing number ofcases, machiner y is required tohave a safety system integrated
conforming to international
functional safety standards. This
product enables users to build
a safety system that offers highsafety performance and flexibility,
reducing the initial cost for startup.
This ar ticle will describe an
overview of each new product andtheir respective features.

■ SANMOTION F Series 42 mm sq. 2-Phase 1.8˚ Stepping Motor
SANMOTION F series 42 mm sq.

have resu lted i n up to 2% h ig her

2-Phase 1.8˚ stepping motor achieves

motor efficiency. Equivalent torquehigher torque, lower noise, and higher

performance can be obtained with aefficiency than our current model.

smaller input current than the current

Besides, it was designed for automatedmodel, which contributes to minimal

production to improve productivity.

h e at ge n e r at i o n a n d b et t e r e c o -The features of this product are
introduced below.

1. High torqueefficiency of equipment.

4. Increased productivity
Fo r e f f i c i e n t l y p r o d u c i n g t h i s

To increase torque, we optimized the

product, we adopted an automatedshape of stator core magnetic circuit

production line. In early stages ofwith magnetic circuit simulation, anddevelopment, we designed a motor

widened the stator core winding space.

structure suited to automatedAlso, by adopting a magnet with highproduction; that is, we designed theresidual magnetic f lux density, we

product and production process inhave successfully achieved 10 to 15%

parallel. Regarding the connection

higher torque with the motor lengthof t he st ator w i nd i n g prev iou s ly

maintained.

performed by hand, we designed a

2. Low noise

motor structure that performs both

In addition to increasing torque,w i nd i n g p ro c e s s a nd c o n ne c t io n

we also improved the noise level byprocess si mu ltaneously inside theincreasing the rigidity of the stator

winding machine.

core. Furthermore, by revising the

As described above, compared to

fit tolerance and clearance for stator,

the current model, this product hasflange, and end cap, the motor rigidity

achieved higher torque, lower noise,after assembly has been increased. As

and better eco-efficiency. Particularlya result, compared with the current

for applications where motors aremodel, the noise level in the operating

operated in close proximity to patientszones has decreased by 3 to 5 dB.

or workers, such as medical devices,

3. Eco-efficientnoise a nd heat generation ca n be

Iron loss has been reduced due toreduced, which contributes to reduced

the abovementioned optimized design

noise and higher safety of equipment.

of the stator core. Moreover, copper

Details of this product are provided

loss has been reduced by expanding

in the “New Products Introduction”

winding space. These loss reductions

section of this Technical Report.

SANYO DENKI Technical Report No.45 May 201830

Feature: Technical Developments in 2017

■ SANMOTION R ADVANCED MODEL 400 VAC Input Multi-axis Servo Amplifier
In line with the globalization ofindustry, there are greater needs formachining quality and productivity.

servo systems with 40 0 VAC input

3. Eco-efficient

sp e c i f ic at ion s f rom not on ly ou r

This is a servo system that can havecustomer s i n Eu rope, C h i na, a nd

multiple amplifier units sharing aSoutheast Asia, but also Japan. As

single power unit. The eco-efficiency

such, SANYO DENKI has added a 400of the equipment is improved as the

VAC input multi-axis servo amplifier

motor regenerative current that occurs

to the SANMOTION R ADVANCED

in one motor can be used as power to

MODEL.

drive a separate motor (powering).

The features of this product are

F u r t her m o re, we a d d e d a p ower

introduced below.

consumption monitoring function that

1. Downsizing of the systemestimates power consumption based on

Previously, it was necessary to use

the speed and current of the motor. The

a step-down transformer to convert

visualization of power consumption

p ower volt a ge to u s e a 2 0 0 VAC

makes it possible to assess the energy

i nput ser vo system i n a 4 0 0 VAC

usage status and operating status ofenvironment. However, in the case of

equipment and production facilities,

this product, 400 VAC can be directly

thus we can expect that this model

supplied, eliminating the need for awill better overall eco-efficiency of astep-down transformer, thus achieving

factory and reduce energy costs.

downsizing of the system. Moreover,

4. Lightweight

the arrangement (height) of the main

For the housing (sheet metal) we havecircuit’s terminals for DC bus power

adopted stainless steel, which maintains

supplied from the power unit to theequivalent strength as the conventional

amplifier unit is standardized between

material (cold-rolled sheet metal) while

units, therefore wiring at the copper bar

being thinner, thus reducing weight.

is simple.

Moreover, stainless steel has high anti-

2. High response control

corrosion properties, therefore thisBased on the control performance31

commands, and contributed to better

product can be used with peace-of-of AC servo amplifier SANMOTION

mind, even in environments with major

R ADVANCED MODEL, we added

temperature and humidity fluctuations.

a phase delay improvement function

Details of this product are provided

and torque feed-forward function.

in the “New Products Introduction”

This has further improved response tosection of this report.

SANYO DENKI Technical Report No.45 May 2018

Power unit

Amplifier unit

■ SANMOTION R 3E Model EtherCAT Servo Amplifier
Si nce SA N YO DEN K I released

increased from 20 objects on the current

the Ether CAT ser vo a mpl i f ier ofmodel to 31 objects on the new model,

the SANMOTION R ADVANCED

which is an increase of around 1.6

MODEL in 2009, we have enhanced

times. This makes it possible to obtainou r l i neup w ith low-voltage i nput

monitoring and diagnosis informationand multi-axis models, and these arefrom many servo amplifiers and motors

used by many of our customers. In

in real-time, which in turn contributes

2017, we developed the latest series

to visualization of servo device and

SANMOTION R 3E Model EtherCAT

equipment operating statuses, as well as

servo amplifier. This product not only

the IoT system with applications such asoffers the strong control performanceequipment failure prediction.

and support for abundant functions

3. Improved convenienceof the SA NMOTION R 3E Model,

The new models feature a scalingit also features improved EtherCAT

function enabling users to select the unitc om mu n ic at ion per for ma nc e a ndof measurement used for commands

function.

and feedback data to suit the structure

1. Shortest communication
cycle in the industryof the particular piece of equipment.
In the past, there was a need for theAt 62.5 µs, this product achieves thehost controller to convert position

shortest minimum communication cycle

command into encoder pulse units toin the industry (in speed/torque control

perform control. By using this scalingmode). This maximizes servo potential,

function, it is possible to directly handle

making smooth operations possible andpositional data using the original units

contributing to high quality processingof [mm] for linear-driven components,

by equipment.

and [degree] for rotating components,

2. Increased amountof data transfer

thus alleviating the computing burden

T h e m a x i mu m a m o u nt o f d at aof the host controller and improving
convenience.

transfer in one communication cycle has

SANYO DENKI Technical Report No.45 May 201832

Feature: Technical Developments in 2017

■ SANMOTION R 3E Model Safety Servo Amplifier
Recent years has seen the rise of awhich is the highest in the industry

demand for the servo systems used(based on our own research as of Aprilin equipment to have various safety2017).

functions conforming to international[St a nd a rd c ompl ia nc e a nd sa fet ysa fet y sta nda rds. Aga i nst th isperformance level]

backdrop, we have released a safety•

servo amplifier with diverse safety•functions and high safety performance

EN 61508: SIL3, IEC 62061: SILCL3
ISO 13849-1:2015 PL=eThis reduces the cost for introducing

in the SA NMOTION R 3E Modela safety system.

series. This product is of a structure

3. Safety input

whereby an expansion board (safety

Equipped with five safety inputs,

function expansion board) to control

this model enables users to select thesafety functions is mounted to the servo

safety function suitable for the control

amplifier side, and it can be applied tostatus of a certain application or piece

all products in the SANMOTION R 3E

of equipment. Moreover, up to 31 types

Model lineup.

of Safely-Limited Speed values are

The features of this product are
introduced below.

1. Safety function

available to select from.

4. Safety output
With two types of safety output

This product supports five types offunctions [Safe Brake Control (SBC)

safety functions demanded of manyand Safe Speed Monitor (SSM)], andtypes of equipment to “stop the motor

three types of status outputs (functionalsafely,” and “rotate the motor safely.”safety input status, safety function

These are the “Safe Torque Off (STO),”

execution status, Safe Torque Off“Sa fe Stop 1 (SS1),” “Sa fe Stop 2

status), this product can monitor safety(SS2),” “Safe Operating Stop (SOS),”status, malfunction of safety functions.

and “Safely-Limited Speed (SLS).”

2. Safety performance

As described above, by using thisproduct, customers ca n m i n i m i ze

By newly developing a diagnosis

their start-up costs (product cost,function that detects encoder failure,costs for obtaining safety standard

even if this product is combined with acertifications) and build a safety systemstandard encoder that does not complyoffering high safety performance andwith the functional safety standard, it

flexibility.

achieves the below safety performance,

Yasutaka Narusawa
Joined SANYO DENKI in 1991.
Servo Systems Division
Works on the design and developmentof servo ampliﬁers.

33

SANYO DENKI Technical Report No.45 May 2018

New Products Introduction

Development of the SANMOTION F
Series 42 mm sq. 2-Phase 1.8°
Stepping Motor
Koji Nakatake

Yasushi Yoda

Mitsuaki Shioiri

Kazuhiro Yoda

Shogo Yoda

Akio Miyahara

Hong Zhang

1. Introduction
As stepping motors are capable of performing highaccuracy positioning control in a simple system, they areused in a broad range of applications and fields, including
OA devices, general industrial devices, and semiconductor
manufacturing equipment. SANYO DENKI has focused
pro duc t development on h ig her f u nc t iona l it y a nd
customization and has expanded the application scope of
stepping motors for general industrial devices to the extent
replacement of AC servo motors is possible.
Meanwhile, there is a growing demand for 2-phase
stepping motors in applications where stepping motors have

Fig. 1: External view of the new model (SF2422 type)traditionally been used; namely, money-handling equipment
such as automatic teller machines, biochemical analysis
equipment, and medical devices such as artificial dialysis

2.2 External dimensions

machines. The features required in these markets are low

F i g u r e 2 s h ow s t h e n ew m o d el’s m a i n ex t e r n a ltorque, low noise, and eco-efficiency. Also, emphasis isspecifications. The flange size is 42 mm sq., with the sameplaced on compatibility with current models.

mounting pitch and mounting pilot dimensions as theTo satisfy these market requirements, SANYO DENKI

current model. This means there is mounting compatibility

developed the SANMOTION F 42 mm sq. 2-Phase 1.8˚

between the new and current models, which makes for easy

stepping motor. This article describes the new model’s

replacement. As with the current model, shaft specifications

specifications and features, as well as the technologies

can be customized.

behind them.

2.3 Lineup and main specifications

2. Specifications of the New Model
2.1 External view

Ta b l e 1 a n d Ta b l e 2 s h ow t h e l i n eu p a n d m a i n
specifications for unipolar and bipolar type stepping motors,
respectively. SANYO DENKI has prepared a total of 16

Figure 1 shows an external view of the new model. The

standard models to choose from, including the four different

connector type of the new model is common to the entire

motor lengths of 33 mm, 39 mm, 48 mm and 59.5 mm,series, and is designed to be inserted from the top of theunipolar models and bipolar models with differing torques,

stepping motor. Compared to the current model, where theand single shaft and double shaft models. As the new models

connector is inserted from the direction of the output axis, theare the same length as the current model, replacement is

new design makes it easier to route the lead wire. Moreover,possible without the need for customers to change their

there is no need to secure space for looping back the lead wire

equipment specifications.

cabling, which allows the customer greater freedom when
designing equipment. Lead wire customization is done via theconventional method of using a terminal harness.

SANYO DENKI Technical Report No.45 May 201834

24±0.5+1
15 0

1.5±0.2

6 max.

42±0.531±0.25

6 max.

L±0.5

15±1

27 max.

S

4.5±0.15

31±0.250
ø22-0.021

S

4-M3×0.5
Tap depth 4 min.

Cross-section

42±0.50ø5-0.0120ø5-0.012

11 9 7 5 3 1

4.5±0.15

Fig. 2: External dimensions of the new model
Table 1: Lineup and main specifications for the unipolar type

Single shaft

Double shaft

SF2421-12U41

SF2421-12U11

Holding torqueat 2-phase
excitation[N・m] MIN.
0.22

SF2422-12U41

SF2422-12U11

0.33

1.2

3.3

0.046

0.3

SF2423-12U41

SF2423-12U11

0.4

1.2

3.9

0.063

0.38

48

SF2424-12U41

SF2424-12U11

0.58

1.2

5.4

0.094

0.51

59.5

Model no.

Rated
current[A/phase]

Winding
inductance[mH/phase]

Rotor inertia[ × 10 -4 kg･m2]

Mass
[kg]

Motor
length L
[mm]

1.2

2.4

0.031

0.23

33
39

Table 2: Lineup and main specifications for the bipolar type
Model no.
Single shaft

Double shaft

SF2421-10B41

SF2421-10B11

Holding torqueat 2-phase
excitation[N・m] MIN.
0.29

Rated
current[A/phase]

Winding
inductance[mH/phase]

Rotor inertia[ × 10 -4 kg･m2]

Mass
[kg]

Motor
length L
[mm]

1

7

0.031

0.23

33

SF2422-10B41

SF2422-10B11

0.43

1

9.6

0.046

0.3

39

SF2423-10B41

SF2423-10B11

0.56

1

12.5

0.063

0.38

48

SF2424-10B41

SF2424-10B11

0.8

1

16

0.094

0.51

59.5

3. Product Features
3.1 High torque(2) Larger winding space
By identifying the areas where magnetic flux density

Fig u re 3 shows a c ompa r i son of pu l l- out torqueeasily became saturated, and adjusting the widths ofcharacteristics. The new model has 10 to 15% higher torquethe back yoke and poles to prevent magnetic flux fromthan the current model. To achieve this higher torque, weconcentrating, we widened the winding space to the greatest

incorporated the following innovative ideas.

extent possible. This has the effect of minimizing the(1) Optimal stator core magnetic circuit design

increase in copper loss without reducing torque.

Figure 4 is a schematic of the stator core profile. The stator
core is comprised of a back yoke and poles, which act as(3) Adoption of a magnet with high residual magnetic flux
densitymagnetic circuits, and the teeth at the tip of the poles. We

By adopting a magnet with high residual magnetic flux

optimized the stator core magnetic circuit by systematicallydensity, higher torque has been achieved without increasing

analyzing the shapes of the above-mentioned components

the overall motor length.

and using magnetic circuit simulation. This has not only

35

increased torque, but also reduced iron loss.

SANYO DENKI Technical Report No.45 May 2018

Development of the SANMOTION F Series 42 mm sq. 2-Phase 1.8° Stepping Motor

0.450
No. of divisions: Full stepPower voltage : 24 VDC

Noise level [dB]

Torque [N･m]

New model
0.2
Current model

0.1

0Current model

40

0.3

30
20

New model
No. of divisions: Full stepPower voltage : 24 VDC
Load-free state

10

500

0
0

1000
2

1500
Speed [min-1]

2000

4
6
Pulse rate [kpulse/s]

2500

3000

8

10

0

200

0

400
Speed [min-1]
1

600

800

2

3

Pulse rate [kpulse/s]

Fig. 5: Noise characteristic comparison(SF2422-12U41)

Fig. 3: Pull-out Torque characteristics comparison(SF2422-12U41)* Detailed shape omitted

Back yoke0

3.3 Higher eco-efficiency through increased
motor efficiency
Compared to the current model, the new model has
2% higher
efficiency. We reduced iron loss through the
図版の文字
123

above-mentioned optimization of the stator core design.
英語版用Furthermore,
copper loss was reduced by expanding
Condens
the winding
英語版用 space. The reduction of these losses made it
Times Tenpossible to achieve equivalent torque to the current modelwith less input current, therefore, taking SF2422-12U41 as
I.D. side
Winding space

Pole

Teeth

Fig. 4: Stator core profile schematican example, the following is achieved.
•

10˚C or higher reduction in motor temperature increase•

10% reduction in input current

This results in low heat generation and better eco-efficiency
of equipment, the former point making it a safer motor touse particularly in medical devices that operate in close

3.2 Low noiseproximity to patients.

Figure 5 shows a noise characteristic comparison.
Compared with the current model, the noise level of the newmodel in its operating range has been reduced by between

3.4 Motor structure design suitable
for automatic production line

3 and 5 dB. Medical devices in which stepping motors are

An automatic production line was adopted for the newused are often operated in close proximity to patients,

model to eliminate variations caused by manual work andtherefore minimal noise is preferable. To achieve low noise,

improve both quality and productivity. From the initial

we incorporated the following innovative ideas.

development phase, we designed the motor structure to(1) High-rigidity stator coresuit automatic production and devised creative ways to

We analyzed the structure of the back yoke and poles andeliminate processes that had conventionally been performed

obtained the dimensions that would increase both rigidity

manually. For the current model, the wiring and connection

and torque, which resulted in higher stator core rigidity.

processes are performed separately, with the latter in(2) High-rigidity motor

particular being performed by hand. In the new model a pin

We revised the tightening allowance between the stator

is set in the insulator, and by tying the beginning and theand the flange/end cap as well as the engagement length

end of the winding it is possible to simultaneously perform

to increase post-assembly motor rigidity and, ultimately,

both winding and connection automatically in a winding

reduce noise.

machine. By adopting this structure, we have secured pin
strength and winding nozzle space, as well as establisheda structure for easily connecting the winding to the pin.

SANYO DENKI Technical Report No.45 May 201836

Development of the SANMOTION F Series 42 mm sq. 2-Phase 1.8° Stepping Motor

Moreover, the new product was designed so it could easily be

Koji Nakatake

manufactured automatically through measures such as using

Joined SANYO DENKI in 2001.
Servo Systems Div., Design Dept. 1
Works on the development and design of stepping
motors.

a rotor with the least possible amount of machining cost, andenabling easy determination of orientation and direction by
establishing assembly standards for each component, etc.
These structural design components make the new

Yasushi Yoda

constant stable supply of high-quality products.

Joined SANYO DENKI in 2002.
Servo Systems Div., Design Dept. 1
Works on the development and design of stepping
motors.

4. Conclusion

Mitsuaki Shioiri

model well-suited to an automatic production line, thereby
achieving improved quality and productivity, as well as aThis paper has introduced the specifications and featuresof the SANMOTION F series 42 mm sq. 2-Phase 1.8°

Joined SANYO DENKI in 1999.
Servo Systems Div., Design Dept. 1
Works on the development and design of stepping
motors.

stepping motor.
The new model improves upon those characteristics
required in applications where stepping motors are
increasingly being demanded, such as money-handlingequipment and medical devices. The new model can easily
replace the current model because of mounting and size

Hong Zhang
Joined SANYO DENKI in 2007.
Servo Systems Division
Application Engineering Dept.
Works on the design and technical proposals
of servo systems.

compatibility. Moreover, SANYO DENKI has establishedan optimal structural design for automatic production andKazuhiro Yoda

product specifications which improve productivity. ThroughJoined SANYO DENKI in 2008.
Servo Systems Div., Design Dept. 1
Works on the development and design of stepping
motors.

this development, we are able to offer our customers greater
safety and peace of mind, as a stable supply of a high-quality
product is ensured. This stepping motor can be proposed
both as a new product in a broad market or as a replacement

Shogo Yoda

to update older models at the same time as offering optimal

Joined SANYO DENKI in 2009.
Servo Systems Div., Design Dept. 1
Works on the development and design of stepping
motors.

specifications for money-handling equipment and medical
devices.
SANYO DENKI intends to apply the technologies used
for this development to stepping motors other than the

Akio Miyahara

42 mm sq. size, and prepare a lineup that satisfies the ever-Joined SANYO DENKI in 1991.
Servo Systems Div., Design Dept. 1
Works on the development and design of servo
motors and stepping motors.

changing and diverse needs of the market to offer productsthat create new value for our customers.

37

SANYO DENKI Technical Report No.45 May 2018

New Products Introduction

Development of the SANMOTION RADVANCED MODEL 400 VAC Input
Multi-axis Servo Amplifier
Takashi Kataoka

Yoshihisa Kubota

Hiroto Noguchi

Keisuke Ishizaki

Yasuo Nakamura

Yasuhiro Wakui

1. Introduction

Akihiro MatsumotoControl unit (common with 200 VAC type)

A variety of power supply voltages are used throughout
the world, depending on the region. To use servo systemproducts, products with input voltage specifications thatsuit factories in various regions are required. Most factories
use either 200 VAC or 400 VAC as their main power supply
voltage, with the latter being common in Europe and Asia,
where there are many factories. As such, SANYO DENKI
is enhancing its lineup of 400 VAC input servo amplifiers inthe same way as its 200 VAC input products.

EtherCAT 4-axis
integrated type

Analog command
single-axis

Power unit (new model)This paper will introduce the 400 VAC input multiaxis servo amplifier newly developed and added to the
SANMOTION R ADVANCED MODEL lineup. This servo
amplifier has a multi-axis configuration, which helps to save
space and create a flexible system. Moreover, it is suitable
for European and Asian customers, who use 400 VAC as themain power supply input.
Below is a n over v iew of the new model c over i ng
performance and main functions, initiatives to achieve a
configuration with optimal heat radiation, and so on.
16 kW

2. Product Overview
2.1 External view and dimensions

Amplifier unit (new model)

Figure 1 shows external views of the newly developed
SANMOTION R ADVANCED MODEL 400 VAC input
multi-axis servo amplifier, and Figures 2 through 4 provide its
dimensions. In order to make flexible system configuration
possible, the new model is separated into three components;
the control unit, power unit, and amplifier unit. They have an
open-type structure intended to be installed in our customers’
control panels. We have prepared two types of control units;
the first being a 4-axis integrated type EtherCAT interface,
and the second being a single-axis analog command interface,a 16 kW output power unit and four types of amplifier units; 25
A, 50 A, 75 A and 150 A. The height of the product is 380 mm,
which is shorter than the 460 mm of the 200 VAC type.

25 A, 50 A, 75 A

150 A

Fig. 1: External view

SANYO DENKI Technical Report No.45 May 201838

74 max.

(94)

2.2 Main specifications

184

Table 1 and Table 2 show the main specifications for the
power unit and amplifier units of the SANMOTION RADVANCED MODEL 400 VAC input multi-axis servo
amplifier.
380

The new model can be combined with motors of rated
outputs ranging between 0.5 kW and 15 kW. The applicable
encoders are SANYO DENKI’s absolute encoder and wiresaving pulse encoder.
Regarding the control unit, a Safe Torque Off (STO)
function is available when using an EtherCAT (maximumof 4 axes) interface. Moreover, as an IoT-related function,a power consumption monitoring function has been
incorporated, and it is possible to examine optimization

Fig. 2: Dimensions (Power unit 16 kW)of operating patterns and operating status from the hostdevice.
The new model also complies with international standards

80 max.

(86)

154

such as Eu rope’s L ow Voltage Di rective, the EMC
Directive, Functional Safety, the US’s UL/cUL, and Korea’s
KC mark.

Table 1: Power unit main specifications
380

Output capacity
Main circuit
voltage
Input
Control
voltage
Dimensions (W × H × D)

(88)

Regeneration function

Built into circuit (External resistor)

380

Fig. 4: Dimensions (Amplifier unit 150 A)

39

SANYO DENKI Technical Report No.45 May 2018

Cooling method
UL/cULLow voltage
directive
Safetystandards EMC
directive
KC mark194

24 VDC ± 15%

Inrush prevention circuit

Display

80 max.

380 to 480 VAC +10%, -15%

184 × 380 × 162 mm
I/O between amplifier units(power supply detection, etc.)
Main power charging display,control power establishment display
Built-in (thyristor type)InterfaceFig. 3: Dimensions (Amplifier unit 75 A)

16 kW

Forced air cooling
UL 61800-5-1
EN 61800-5-1
EN 61800-3, EN 61326-3-1
KN 61000-6-2, KN 61000-6-4

Development of the SANMOTION R ADVANCED MODEL 400 VAC Input Multi-axis Servo Amplifier

Table 2: Main specifications of amplifier units
Output capacity
Input
Output

25 A

50 A

Main circuit voltage

75 A

150 A

34 Arms

457 to 747 VDC
24 VDC ± 15%

Control voltage
Continuous rated current

4.8 Arms

12 Arms

18 Arms

Instantaneous maximum current

14.1 Arms

29.2 Arms

45.5 Arms

W154 mm
H380 mm
D161 mm

Dimensions
Compatible motors

0.5 to 2.0 kW

Compatible encoders
Interface

2.0 to 3.5 kW

4.5 to 7.0 kW

7.5 to 15 kW

Absolute encoder, wire saving pulse encoder
EtherCAT (4-axis integrated control), analog (single-axis control)

Dynamic brake

Included (built-in resistors)

Cooling method

Forced air cooling

Safety standards

83 Arms
W194 mm
H380 mm
D197 mm

UL/cULUL 61800-5-1

Low voltage directive

EN 61800-5-1

EMC directive

EN 61800-3, EN 61326-3-1

KC mark

KN 61000-6-2, KN 61000-6-4

3. Main Functions and Features
This section describes the functions and features of the
new model.

3.4 Energy saving
As multiple amplifier units have a common power unit,
regenerative power from the motor can be used to powerother motors, and it is possible to increase the energy-saving
performance of equipment.

3.1 System downsizing
Previously, it was necessary to use a step-down transformer,
etc. to convert the power supply current from 400 VAC to

We have also achieved a low power consumption of 24 V
by using unit internal temperature monitoring to perform
two-stage speed control of a variable speed fan.

200 VAC in order to use a 200 VAC input servo system ina 400 VAC power supply environment. On the new model,

3.5 Lightweight

however, a 400 VAC power supply can be directly supplied

The servo amplifier’s housing (sheet metal portion)

to the servo amplifier, eliminating the need for a step-down

is made from high-strength stainless steel (SUS). We

transformer and making it possible to reduce system size.

performed fixed-value analysis and damping performance
investigations of the sheet metal in order to secure a strength

3.2 High response control

equivalent to that of the cold-rolled steel plate (SPCC/

Ba s e d on a c ont rol s y st em c o mpat ible w it h t he

SECC) (hereinafter steel plate) used on current models, at

S A N MOT ION R A DVA NCE D MODEL AC ser vo

the same time reducing the thickness and weight of the sheet

amplifier, the new model is equipped with functions tometal.

improve phase delay and increase integral gain, for higher

Moreover, conventional steel plate was electroplated

feedback response. Moreover, with both speed and torqueor painted as a means of rust prevention. Stainless steel,feed-forward compensation, an improvement in command

however, has excellent anti-rust performance even without

responsiveness can also be expected.

being treated, and therefore offers an advantage for use
in manufacturing.. Generally-speaking, stainless steel

3.3 Power consumption monitoring function

has a higher electrical resistance than steel plate, so we

The new model features a power consumption monitoring

implemented innovative measures for reducing contact

function which estimates the power consumption of theresistance, such as directly connecting a ground terminal

servo motor and amplifier based on the speed and current

and connecting the sheet metal via a tap. As a result,of the motor. This makes it possible to easily estimate andwe achieved the same level of grounding continuity

monitor a device’s power consumption.

(conductivity) and noise resistance as current models.

SANYO DENKI Technical Report No.45 May 201840

3.6 Simple wiring

Moreover, as shown in Figure 5, the terminals (P, N)

For the control power supply (24 VDC) wiring, we used

for the main circuit (457 to 747 VDC) bus power supply

the same connector as that used on the SANMOTION R

supplying power from the power unit to the amplifier unit

3E MODEL 400 VAC input single-axis servo amplifier andhave a standardized layout (height) between units, and canmade single touch connection possible.

easily be wired to the copper bar.

Power unit 16 kW

Amplifier unit 150 A

Amplifier unit 25 A, 50 A, 75 A

Main circuit copper bar wiring (457 to 747 VDC) can be wired horizontally

Copper bar
To the next amplifier
Bus power
terminal(P, N)

Regenerative
resistors(RB1/RB2)

Control power (24 VDC)
Ground terminal

Controlpower(24 VDC)

Groundterminal

Groundterminal

24 VDC connector

Motor output(U/V/W)

Main power input(R/S/T)

Controlpower(24 VDC)

Motor output(U/V/W)

24 VDC connector

Ground terminal
24 VDC connector

Fig. 5: Terminal layout drawing

4. Optimal heat radiation configuration

On the power unit and amplifier unit, the heat-generating
portions of the diode module and power module are locatedFigure 6 shows the heat radiation configuration of theabove the radiator fins. For the fan to cool these hot portions

newly developed SANMOTION R ADVANCED MODEL

efficiently, important factors to consider are the distance

400 VAC input multi-axis servo amplifier.

between the radiator fins and cooling fan, as well as theHeat analysis result – heat analysis(study of the heat discharge portion shape)

Fan outlet

Radiator fins

Clearance (C)
（A）

（B）

Clearance (C)

Fan
No.

Distance between heat
Radiator fin length(A portion)
radiator fins and fan (B portion)

Fan outlet shape(C portion)(1)

Long fins

Short distance

Clearance(2)

Long fins

Short distanceNo clearance(3)

Short fins

Long distance

Clearance(4)

Short fins

Long distanceNo clearance

A 60×60 mm fan is mounted
on radiator fins with a 60 mm depth,
forming a clearance

Fig. 6: Distance between radiator fins and cooling fan

41

SANYO DENKI Technical Report No.45 May 2018

Development of the SANMOTION R ADVANCED MODEL 400 VAC Input Multi-axis Servo Amplifier

the optimal layout.

clearance of the cover over the cooling fan.
As shown in Figure 6, to optimize cooling efficiency of

As shown in Figure 7, even if the radiator fins are short, as

the new model, SANYO DENKI changed conditions forper condition No. (4), by securing space between the fins andthe length of the radiator fins (A), the distance between

fan, and eliminating the fan outlet clearance, it was possible

the radiator fins and the cooling fan (B) and the outlet

to optimize the heat radiation effect.

clearance (C), then performed heat analysis to determine
AMP 75 A
Temperature contour map (profile)

Power unit

Amplifier unit

Heat analysis result – Temperature rise

75 A_IPM■(4) Short fins, Long distance,No clearance■(3) Short fins, Long distance, Clearance

150 A_IPM■(2) Long fins, Short distance, No clearance■(1) Long fins, Short distance, Clearance

RectifierRegenerative
IGBT
←Low

Temperature riseHigh→With the conditions of (4),temperature rise is suppressed
the most.

Fig. 7: Heat analysis results

5. Conclusion

factories, to a servo amplifier without the need for a stepdown transformer. Moreover, the multi-axis servo amplifierThis article has introduced the performance and main

shares a common power unit, so regenerative power fromfunctions of the SANMOTION R ADVANCED MODEL

the motor can be used to drive other motors, which we

400 VAC input multi-axis servo amplifier and initiatives

believe will help to improve the energy-saving performance

regarding adopting new structural materials and achievingof our customers’ equipment.

an optimal heat radiation configuration.
The new model makes it possible to directly supply
400 VAC, the common power supply in European and AsianAmidst ever-changing markets, SANYO DENKI iscommitted to developing servo systems that help to solve ourcustomers’ problems and create new value.

SANYO DENKI Technical Report No.45 May 201842

Development of the SANMOTION R ADVANCED MODEL 400 VAC Input Multi-axis Servo Amplifier

Takashi Kataoka
Joined SANYO DENKI in 1988.
Servo Systems Div., Design Dept. 2
Works on the development and design of servo
ampliﬁers.

Yoshihisa Kubota
Joined SANYO DENKI in 1989.
Servo Systems Div., Design Dept. 2
Works on the development and design of servo
ampliﬁers.

Hiroto Noguchi
Joined SANYO DENKI in 2016.
Servo Systems Div., Design Dept. 2
Works on the development and design of servo
ampliﬁers.

Akihiro Matsumoto
Joined SANYO DENKI in 1990.
Servo Systems Div., Design Dept. 2
Works on the development and design of servo
ampliﬁers.

Keisuke Ishizaki
Joined SANYO DENKI in 2008.
Servo Systems Div., Design Dept. 2
Works on the development and design of servo
ampliﬁers.

Yasuo Nakamura
Joined SANYO DENKI in 2009.
Servo Systems Div., Design Dept. 2
Works on the development and design of servo
ampliﬁers.

Yasuhiro Wakui
Joined SANYO DENKI in 2012.
Servo Systems Div., Design Dept. 2
Works on the development and design of servo
ampliﬁers.

43

SANYO DENKI Technical Report No.45 May 2018

List of Technical Award Engineers of 67th JEMA of 2018
Heavy Electrical Category
Prize

Subject

Division

Name

Encouragement
Award

Development of G-Proof Fan
with high G-force tolerance

Cooling Systems Div., Design Dept.
Cooling Systems Div., Design Dept.
Cooling Systems Div., Design Dept.

Naoya Inada
Masato Kakeyama
Masaki Kodama

Encouragement
Award

Development of an AC servo amplifier
with various safety functions
and high safety performance

Servo Systems Div., Design Dept. 2
Servo Systems Div., Design Dept. 2
Servo Systems Div., Design Dept. 2

Yoshiyuki Murata
Hideki Netsu
Yuuki Nakamura

Encouragement
Award

Development of Power Conditioner for Wind
Power and Hydro Power Generation Systems

Power Systems Div., Design Dept. 1
Power Systems Div., Design Dept. 1
Power Systems Div., Design Dept. 1

Hirofumi Nishizawa
Masahiro Inukai
Tetsuya Fujimaki

Development of a UPS equippedwith lithium-ion batteries

Power Systems Div., Design Dept. 2
Power Systems Div., Design Dept. 2
Power Systems Div., Design Dept. 2

Shinichiro Yamagishi
Kazuya Yanagihara
Shota Ozawa

Development of a 2-phase hybrid stepping motorthat achieves high performance and automatedassembly

Servo Systems Div., Design Dept. 1
Servo Systems Div., Design Dept. 1
Servo Systems Div., Design Dept. 1

Koji Nakatake
Mitsuaki Shioiri
Hong Zhang

Development of ø221 and ø225 Splash Proof
Centrifugal Fans

Cooling Systems Div., Design Dept.
Cooling Systems Div., Design Dept.
Cooling Systems Div., Design Dept.

Kakuhiko Hata
Yukihiro Nagatsuka
Nozomi Manji

Division

Name

Manufacturing Category
Prize

Subject

Encouragement
Award

Servo Systems Div., Production Engineering Dept.,
Production Engineering and Development Sect.
Servo Systems Div., Production Engineering Dept.,
Automation of magnet wire insulation film peeling
Production Engineering and Development Sect.
Servo Systems Div., Production Engineering Dept.,
Process Engineering Sect. 1

Kazuhiro Makiuchi
Gang Xu
Atsushi Endo

Division names are those at the time of nomination.

Naoya Inada

Masato Kakeyama

Masaki Kodama

Yoshiyuki Murata

Hideki Netsu

Yuuki Nakamura

Shinichiro Yamagishi

Kazuya Yanagihara

Shota Ozawa

Hirofumi Nishizawa

Masahiro Inukai

Tetsuya Fujimaki

Koji Nakatake

Mitsuaki Shioiri

Hong Zhang

Kakuhiko Hata

Yukihiro Nagatsuka

Nozomi Manji

Kazuhiro Makiuchi

Gang Xu

Atsushi Endo

SANYO DENKI Technical Report No.45 May 201844

Major Patents■ Patents registered in 2017

Registration Number

Name

Inventor(s)Patent 6163037

Terminating Resistor Connector

Koichi Machida

Patent 6074346

Patent 6190550

Switchboard Apparatus
Isolated Operation Detector and Method of Detecting Isolated
Operation
Parallel-Off Controller, Method of Controlling Parallel-Off
and Power Conditioner
Linear Motor and Magnetic Shielding Structure for Linear Motor

Patent 6128872

POWER TRANSMISSION DEVICE

Patent 6125267

INTERIOR MAGNET LINEAR INDUCTION MOTOR

Patent 6117574

INDUCTOR TYPE ROTARY MOTOR

Patent 6118157

MOTOR SPEED CONTROL APPARATUS

Yuzo Kubota
Hiroyuki Hanaoka, Akihiro Tsukada,Kazuya Nishizawa
Hiroyuki Hanaoka, Akihiro Tsukada,Kazuya Nishizawa
Yu Qi Tang
Satoshi Sugita, Yu Qi Tang, Yasushi Misawa,
Shigenori Miyairi
Satoshi Sugita, Yu Qi Tang, Yasushi Misawa,
Shigenori Miyairi
Satoshi Sugita, Yu Qi Tang, Yasushi Misawa,
Shigenori Miyairi
Yuji Ide, Satoshi Yamazaki

Patent 6166926

LINEAR MOTORSHAFT ROTARY TYPE LINEAR MOTOR AND SHAFT ROTARY TYPE
LINEAR MOTOR UNIT

Patent 6082689
Patent 6109050

Patent 6082646
Patent 6207870

FAN MOTOR

Patent 6140037

POWER CONVERTER

Patent 6106568

Patent 6140035

POWER CONVERTER
WINDING INSULATION STRUCTURE OF STATOROF ELECTROMAGNETIC MOTOR
THREE-PHASE ELECTROMAGNETIC MOTOR

Patent 6104134

HOUSING OF FAN MOTOR

Patent 6154704

CONTROL DEVICE OF FAN MOTOR

Patent 6106582

MOTOR CONTROLLER

Patent 6126984

WATERPROOF AXIAL FLOW FAN

Patent 6204847

GROUND WIRE CONNECTION STRUCTURE FOR MOTOR

Patent 6093817

MOTOR CONTROL DEVICEEP Patent 2091131

MOTOR ROTOR AND MANUFACTURING METHOD THEREOFEP Patent 2508760

COUNTER-ROTATING AXIAL FLOW FANMAGNETIC SHIELD COVER FOR ENCODER OF MAGNETIC
DETECTION TYPE AND ENCODER OF MAGNETIC DETECTION TYPE

Patent 6131144

EP Patent 2916109
EP Patent 2439415

LEAD WIRE ENGAGING STRUCTURE AND ELECTRIC APPARATUS

U.S. Patent 9613740

MOVING MAGNETIC FIELD GENERATING APPARATUS

U.S. Patent 9581174

FAN FRAME

U.S. Patent 9714659

AXIAL FLOW FANPERMANENT MAGNET TYPE MOTOR AND METHODFOR MANUFACTURING PERMANENT MAGNET TYPE MOTOR

U.S. Patent 9660490

45

Yu Qi Tang, Satoshi Sugita
Yu Qi Tang, Satoshi Sugita
Naruhiko Kudo, Munenori Takakuwa,
Tatsuya Midorikawa
Minoru Yanagisawa
Masahiko Nagai
Kazuhiro Yoda, Masaaki Ohashi, Shogo Yoda
Toshihito Miyashita, Manabu Horiuchi
Toshiya Nishizawa, Haruka Sakai,
Jiro Watanabe, Masashi Yokota
Takahisa Toda, Takashi Kaise, Jiro Watanabe
Yuji Ide, Michio Kitahara, Satoshi Yamazaki
Katsumichi Ishihara, Akira Nakayama,
Tatsuya Midorikawa, Masato Kakeyama
Toshihito Miyashita, Manabu Horiuchi
Yuji Ide, Satoshi Yamazaki, Masahisa Koyama
Toshihito Miyashita, Takashi Matsushita,
Norihito Tanaka
Atsushi Yanagisawa, Honami Osawa
Kazuhiro Makiuchi, Yoshihiro Shoji
Yen Junchieh, Jiro Watanabe,
Hiromitsu Kuribayashi, Shigekazu Mitomo
Satoshi Sugita, Yasushi Misawa, Yu Qi Tang,
Shigenori Miyairi
Masahiro Koike, Soma Araki, Toshiki Ogawara
Naoya Inada, Jiro Watanabe
Toshihito Miyashita, Manabu Horiuchi

U.S. Patent 9634534

BRUSHLESS MOTOR

U.S. Patent 9601956

THREE-PHASE PERMANENT MAGNET TYPE MOTOR

Yoshinori Miyabara, Haruhisa Maruyama,
Kei Sato, Haruka Sakai
Toshihito Miyashita, Masahiro Yamaguchi

U.S. Patent 9551345

AXIAL FLOW FAN

Atsushi Yanagisawa

U.S. Patent 9614405

WIRING STRUCTURE OF STATOR COIL

U.S. Patent 9742258

ROTATIONAL-LINEAR MOTION CONVERTER

Yukio Miura, Masaaki Ohashi, Koji Nakatake
Satoshi Sugita, Yu Qi Tang, Yasushi Misawa,
Shigenori Miyairi

U.S. Patent 9712030

SHAFT ROTARY TYPE LINEAR MOTOR AND SHAFT ROTARY TYPE
LINEAR MOTOR UNIT

Yu Qi Tang, Satoshi Sugita

U.S. Patent 9748814

ASSEMBLY METHOD OF AN INLINE TYPE FAN MOTOR

Katsumichi Ishihara, Masashi Nomura,
Tomoko Hayashi

SANYO DENKI Technical Report No.45 May 2018

Registration Number

Inventor(s)U.S. Patent 9853530

Name
Multi-phase Linear Motor with Continuously Wound Coils
in Each Phase
LINEAR MOTOR UNIT

U.S. Patent 9698634

STATOR CORE AND PERMANENT MAGNET MOTOR

Toshihito Miyashita, Manabu Horiuchi

U.S. Patent 9742245

Korea Patent 10-1738670

GROUND WIRE CONNECTION STRUCTURE FOR MOTOR
Toshihito Miyashita, Manabu Horiuchi
PRODUCT SPECIFICATION SETTING APPARATUS AND FAN MOTOR
Tetsuya Yamazaki, Takahisa Toda
HAVING THE SAMELINEAR SYNCHRONOUS MOTOR
Yu Qi Tang, Satoshi Sugita
Naruhiko Kudo, Tomoaki Ikeda,
ELECTRIC FAN
Haruhisa Maruyama
MOTOR CONTROLLER
Yuji Ide, Satoshi Yamazaki

Korea Patent 10-1788772

MOTOR CONTROLLER

Toshiyuki Nakamura, Yo Muramatsu

Korea Patent 10-1807787

Yuji Ide

Korea Patent 10-1799957

MOTOR CONTROLLER
MOTOR CONTROL SYSTEM INCLUDING ELECTRICAL INSULATION
DETERIORATION DETECTING SYSTEM
MOTOR CONTROL SYSTEM INCLUDING ELECTRICAL INSULATION
DETERIORATION DETECTING SYSTEM
MOTOR CONTROLLER

Korea Patent 10-1799544

MOTOR CONTROLLER

Yuji Ide, Masakazu Sakai

Korea Patent 10-1724646

MOTOR CONTROLLER

Yuji Ide

Taiwan Patent I565217

MOTOR CONTROLLER

Yuji Ide, Masakazu Sakai

Taiwan Patent I581556

MOTOR CONTROLLER

Yuji Ide, Satoshi Yamazaki

Taiwan Patent I594566

MOTOR CONTROLLER
SPLIT-CORE TYPE MOTOR AND METHOD OF MANUFACTURING
ARMATURE OF SPLIT-CORE TYPE MOTOR
MOTOR CONTROLLER

Toshiyuki Nakamura, Yo Muramatsu
Toru Takeda, Shintaro Koichi,
Kenta Matsuhashi
Yuji Ide
Takahisa Toda

Taiwan Patent I600269

MOTOR CONTROLLERPERMANENT MAGNET TYPE MOTOR AND METHODFOR MANUFACTURING PERMANENT MAGNET TYPE MOTOR
MOTOR CONTROL SYSTEM INCLUDING ELECTRICAL INSULATION
DETERIORATION DETECTING SYSTEM
MOTOR CONTROL SYSTEM INCLUDING ELECTRICAL INSULATION
DETERIORATION DETECTING SYSTEM
MOTOR CONTROL DEVICE AND MOTOR CONTROL METHOD

Taiwan Patent I593215

THREE-PHASE PERMANENT MAGNET TYPE MOTOR

Toshihito Miyashita, Masahiro Yamaguchi

Taiwan Patent I583104

PERMANENT MAGNET-EMBEDDED MOTOR AND ROTOR THEREOF

Toshihito Miyashita

Taiwan Patent I589782

AXIAL FLOW FAN

Atsushi Yanagisawa

Taiwan Patent I568169

MOTOR CONTROLLER

Yuji Ide, Satoshi Yamazaki

Taiwan Patent I604683

WIRING STRUCTURE OF STATOR COIL

Yukio Miura, Masaaki Ohashi, Koji Nakatake

Taiwan Patent I597931
China Patent
ZL201310342099.9
China Patent
ZL201310325466.4
China Patent
ZL201310325069.7
China Patent
ZL201310464531.1
China Patent
ZL201310397858.1
China Patent
ZL201310425260.9
China Patent
ZL201310606923.7
China Patent
ZL201410167990.8
China Patent
ZL201310031221.0
China Patent
ZL201310159567.9

MOTOR CONTROLLERPERMANENT MAGNET TYPE MOTOR AND METHODFOR MANUFACTURING PERMANENT MAGNET TYPE MOTOR
MOTOR CONTROL SYSTEM INCLUDING ELECTRICAL INSULATION
DETERIORATION DETECTING SYSTEM
MOTOR CONTROL SYSTEM INCLUDING ELECTRICAL INSULATION
DETERIORATION DETECTING SYSTEM

Yuji Ide, Shunichi Miyazaki

THREE-PHASE PERMANENT MAGNET TYPE MOTOR

Toshihito Miyashita, Masahiro Yamaguchi

AXIAL FLOW FAN

Atsushi Yanagisawa

MOTOR CONTROLLER

Yuji Ide, Satoshi Yamazaki

POWER LINE CONNECTING STRUCTURE OF STATOR

Yukio Miura, Kazuyoshi Uchiyama,Kazuhiro Yoda

SHAFT ROTARY TYPE LINEAR MOTOR AND SHAFT ROTARY TYPE
LINEAR MOTOR UNIT

Yu Qi Tang, Satoshi Sugita

U.S. Patent 9837884

U.S. Patent 9705385
Korea Patent 10-1767527
Korea Patent 10-1778119

Korea Patent 10-1810638
Korea Patent 10-1810639

Taiwan Patent I606675
Taiwan Patent I575863
Taiwan Patent I594565
Taiwan Patent I596868
Taiwan Patent I584573
Taiwan Patent I582446

Yu Qi Tang, Takashi Matsushita
Yu Qi Tang, Kazuhito Yamaura

MOTOR CONTROL DEVICE AND CONTROL METHOD OF THE SAMEFAN FRAME

Yuji Ide
Yuji Ide, Masahisa Koyama, Yoshihisa Kubota
Yuji Ide, Satoshi Yamazaki

Toshihito Miyashita, Manabu Horiuchi
Yuji Ide
Yuji Ide, Masahisa Koyama, Yoshihisa Kubota
Yo Muramatsu, Takahisa Toda

Toshihito Miyashita, Manabu Horiuchi
Yuji Ide
Yuji Ide, Masahisa Koyama, Yoshihisa Kubota

Noriaki Taniguchi, Takahisa Toda,
Yo Muramatsu
Masahiro Koike, Soma Araki,
Toshiki Ogawara

SANYO DENKI Technical Report No.45 May 201846

Internal Recognition: Manufacturing Grand Prize(Excellence Award)
May 2017 Commendations
Prize

Subject
Surface Treatment
Technology
Excellence
for Improving
Award
the Appearanceof Plastic Parts

Division

Name

Cooling System Div., Production Dept. Production Engineering Sect. 2
Cooling System Div., Production Dept. Production Engineering Sect. 2
Human Resources Dept. (On secondment from SANYO DENKI Techno Service CO., LTD.)

Yoichi Yamada
Shoji Kanai
Masahiko Nomura

Servo Systems Div., Production Engineering Dept., Production Engineering
Automation of theand Development Sect.
Excellence 20 mm sq. R series
Servo Systems Div., Production Engineering Dept., Process Engineering Sect. 1, Subsect. 1
Award
servo motor rotor
Human Resources Dept. (On secondment from SANYO DENKI Techno Service CO., LTD.)
assembly
Human Resources Dept. (On secondment from SANYO DENKI Techno Service CO., LTD.)

Kazuhiro Makiuchi
Kei Tanaka
Atsushi Handa
Daiki Kobayashi

Technical Papers Published Outside the Company
in General Technical Journals
January to December 2017
Title of Paper
Feature: Product and Technology Developmentof Member Companies and the Results of 2016

Authors
SANYO DENKI
CO., LTD.

Name of Journal
Denki (Electrical
Appliances)

Issued on
2017.2Publisher
The Japan Electrical Manufacturers ’
Association (JEMA)

Technical Papers Published Outside the Company
January to December 2017
Title of Paper

Authors

Name of Journal

Issued on

Publisher

Robust Positioning Control
Using α-β Stationary Frame Current
Controller and Disturbance
Torque Hybrid Observer

Yuji Ide,
Daigo Kuraishi,
Akihiko Takahashi
and others
Yuji Ide,
Daigo Kuraishi,
Akihiko Takahashi
and others

IEEJ Journalof Industry
Applications
Vol.6 No.2

March

IEEJ Industrial Applications
Category

Research materials

March

Joint Technical Meetingon Motor Drive and Homeand Consumer Appliances

Takuya Ota,
Hiroaki Miyoshi
and others

Contest research
paper collection

March2017 IEEJNational Conference

Usual Application Example using Linear Motor
Precision Positioning, High Speed,
High Frequency

Satoshi Sugita
and others2017 IEEJ Industrial
Applications
Category Contest
AugustLecture paper
collection

IEEJ Industrial Applications
Category

Experimental Study on Estimationof Stator Resistance Variation
Based on Stator Flux Linkage Estimation
for Permanent Magnet Synchronous Motor2017 IEEJ Industrial
Yuji Ide,
Applications
Daigo Kuraishi,
Category Contest
AugustAkihiko Takahashi
Lecture paperand others
collection

IEEJ Industrial Applications
Category

Control methods for power storage devices
in distributed power system

Hiroaki Miyoshi
and others

Contest research
paper collection

October

INTELEC2017(International Telecommunications
Energy Conference 2017)

A Consideration on Current Noise Measurement
in Distributed Power Supply
Introduction System

Hiroaki Miyoshi
and others

Contest research
paper collection

October

INTELEC2017(International Telecommunications
Energy Conference 2017)

Estimation of Stator Resistance Variation
Based on Stator Flux Linkage Estimation
for Permanent Magnet Synchronous Motor.
Study on control operation in a system
introducing power storage device

47

SANYO DENKI Technical Report No.45 May 201845

May 2018

https://www.sanyodenki.com

Published in Japan in May 15, 2018 by SANYO DENKI CO.,LTD.
Published semi-yearly
3-33-1 Minami-Otsuka, Toshima-ku, Tokyo 170-8451, Japan
Phone +81 3 5927 1020
Publisher Shigeo Yamamoto
Editorial Board Members:
Nobumasa Kodama
Editor-in-Chief
Satoru Onodera
Managing Editor
Shiho Tsukada
Secretary
Masafumi Yokota
Kenta Nishimaki
Masakazu Uchida
Kiyoshi Mizuguchi
Hideki Netsu
Daigo Kuraishi
Hiroshi Miyazaki
Rieko Komine
Copyright © 2018 SANYO DENKI CO., LTD.
All rights reserved.
No part of this publication may be reproduced in any manner whatsoever without written
permission from SANYO DENKI.
All company and product names used in this publication are trademarks or registeredtrademarks of their respective companies.